determine whether descriptive or inferential statistics were used in the statement. 67% of cell phone users check their phone even though it is not ringing or vibrating. (source: pew research center)

Answers

Answer 1

Inferential Statistics

Inferential Statistics is the part of statistical analysis that helps you to determine or predict further steps from the data studied according to Statistical methods. It is helpful in understanding people's perspectives or analyzing data from the samples obtained from it. It can be defined as the analytical tool used to draw conclusions about a population by analyzing random samples.

Descriptive Statistics are used to describe the data and make generalizations about the studies. It is used the define the characteristics of the data obtained.

In the given situation, the statistical analysis is done and it has been inferred from the studies that 67% of people check their cell phone even when it is not ringing or vibrating.

Hence, It is a case of Inferential Statistics.

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Related Questions

Earth is approximately 5 x 109 years old. For which of these ages could this be an approximation?
A 4,762,100,000 years
B 48,000,000,000 years
4.45 x 10⁹ years
4.249999999 × 10⁹ years

Answers

Answer:

The answer is around 50,000,000,000 years so its E

Step-by-step explanation:

Three times a number, increased by one, is between negative eight and thirteen. Find all the numbers.

Answers

Answer:

l speak frenchjwhehdgdhehdhs

Question 4 of 10
If you subtract 13 from an even number, the answer will be odd.
A. True
OB. False
SUBM

Answers

It is true unless you can find a number that is even

1. The regular price of a sweater is $80. It is on sale for 25% off. Find the final price
including 13% tax.


No links

Answers

Answer:

Step-by-step explanation:

hi

If f(x) = 3x + 2 and g(x) = xsquared − x, find the value. f(x) + 1

Answers

The value of the function f(x) + 1 is 3x + 3

What are linear equations?

Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient

How to determine the value of the function?

The functions are given as

f(x) = 3x + 2

g(x) =x^2 - x

To calculate the value of the function f(x) + 1, we use the following definitions:

New function = f(x) + 1

Substitute f(x) = 3x + 2 in New function = f(x) + 1

So, we have

New function = 3x + 2 + 1

Evaluate the sum

So, we have

New function = 3x + 3

Rewrite as

So, we have

f(x) + 1 = 3x + 3

Hence, the value of the function f(x) + 1 is 3x + 3

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what is the range of the data set: 7, 12, 15, 4, 23, 15, 25, 9

Answers

Answer: 21

Step-by-step explanation:

When it comes to finding the range, you must take the biggest number and subtract it from the smaller number, therefore in your question the answer is

25 - 4 = 21

Hope it helped :D


Write each logarithmic expression as a single logarithm. log₂4+3 log₂9

Answers

The solution for the given logarithmic expression log₂4+3 log₂9 as a single logarithm is log₂ (2916).

What are the logarithmic expression?

A logarithmic equation is one that includes a logarithm in the variable x.

An exponential formula is one where the variable is represented by an exponent. To answer exponential equations, first determine whether both sides of the equation can be written as powers of the exact number. If you can't, take the common logarithm from both of the equation's sides and use property 7 to solve the problem.

Quotient Rule: ㏒(A/B) = ㏒A - ㏒BProduct Rule : ㏒A + ㏒B = ㏒(AB)Power Rule: n㏒A = ㏒Aⁿ

Now, as per the stated condition in question;

The expressed equation is;

= log₂4+3 log₂9

Using the Power Rule in the second term.

= log₂4+log₂9³

=  log₂4+log₂729

As, the base of each log term is 2. We can use product rule to simplify the equation.

= log₂(4×729)

= log₂ (2916) [As a single log function]

Therefore, the simplification of the given logarithmic expression as the single logarithm is log₂ (2916).

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Write each logarithm as the quotient of two common logarithms. Do not simplify the quotient.

log₃ 8

Answers

Each logarithm as the quotient of two common logarithms is :

[tex]\frac{log\\ 8}{log \\3}[/tex]

What is logarithmic equation ?

In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as  .

   [tex]log_ax=N[/tex]

where, a is the base of function or equation

           x define expression

Mathematically, if  [tex]a^N=x[/tex]  is an exponential function then, this can be converted to logarithmic function as  [tex]log_ax=N[/tex].

There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.

Some important formulas of logarithms are :

log a × b = log a + log blog a/b = log a - log blog a^x = x log alog a^a = 1log (√x) = 1/2 log (x)

The given expression is,

[tex]log_38[/tex]

as, [tex]log_bm= \frac{log_cm}{log_cb}[/tex]

therefore ,

[tex]log_38[/tex] =  [tex]\frac{log \ 8}{log \ 3}[/tex]

Hence,  logarithm as the quotient of two common logarithms is :

[tex]\frac{log\\ 8}{log \\3}[/tex]

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How do you model a situation in which a function behaves differently over different parts of its domain?

Enter your answer.

Answers

The situation in which a function behaves differently over different parts of its domain is modeled by considering it to be a piecewise function.

What is Mathematical function ?

Function is defined as the expression or relation between any given two variables such as x and y and there must be an independent variable and dependent variable

Such a situation can be explained through an example:

f(x) =   { x, for x > 0

        {     1, for x = 0

        { -x, for x < 0

now, when we take x value less than 0, say x= -1

   thus, f(x)= f(-1)= -(-1) = 1 , here we used f(x) given x<0

now, when we take x value more than 0, say x= 1

   thus, f(x)= f(1)= (1) = 1, here we used f(x) given x>0

now, when we take x =  0,

   thus, f(x)= f(0)= 1, here we used f(x) given x=0

this is how we model piecewise function, we  use f(x) as per the value of x. Following image shows plotted answer for this example.

Since inequalities given are exclusive of 0, we leave the dot at the origin unfilled. Now, for x = 0. Since the value is constant at f(x) =1, we pointed a point at (0,1)

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Simplify each number. 64²/₃ 64²/₃

Answers

The result of simplifying each number 64²/₃ 64²/₃  using the exponent rules is 256

To solve this exercise we have to resolve algebraic operations following the exponent rules.

64²/₃ * 64²/₃

Base= 64Exponent = 2/3

The base number 64 is the same that: 4³, then we get:

(4)³ ⁽²/₃⁾ * (4)³ ⁽²/₃⁾

Using the power of a power rule that indicates that: the exponent result will be the multiplication of these exponents, we have:

4⁽³*²/³⁾ * 4⁽³*²/³⁾

4⁽⁶/³⁾ * 4⁽⁶/³⁾

(4)² * (4)²

Using the product rule that indicates that: the exponent result will be the addition of these exponents, we have:

4⁽²⁺²⁾

4⁴

4*4*4*4

256

What is an exponent?

In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.

Example: 3² = 3*3 = 9

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4(x-8)= 4x + 2
what is x

Answers

Answer:

undefined

Step-by-step explanation:

4x-32=4x+2

-4x

-32=2

undefined

4x10^6 is larger than 2x10^3 by what number

Answers

10^6=1000000
1000000•4=4000000
10^3=1000
1000•2=2000
4000000-2000=3998000


According to the box-and-whisker plot shown above, identify the following:
5) The 25th quartile
6) The 75th quartile
7) The range

Answers

According to the box-and-whisker plot,

5)The 25th quartile = 60

6)The 75th quartile = 100

7)The range = 40

Box-and-whisker plot allows us to determine the mean, the largest or the lowest number in the data set as well as the quartiles in the data.

In this case, from the given figure,

Median is equal to = 80,

The range is equal to = 110-40

We can subtract the value,

So we can write,

The range is equal to = 70.

The 25th quartile is equal to = 60

The 75th quartile is equal to = 100.

The range is equal to = 100-60

We can subtract the value,

So we can write,

The range is equal to = 40. 

So,

Then,

The median=80

The range=70

Therefore,

According to the box-and-whisker plot,

5)The 25th quartile = 60

6)The 75th quartile = 100

7)The range = 40.

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Simplify each number. 81¹/₄

Answers

[tex]81^{\frac{1}{4} }[/tex] can be simplified into 3.

Prime factorization is the process of breaking down a number into its prime factors. Multiplying these prime numbers gives back the original number.

Prime factorization of 81 = 3 x 3 x 3 x 3 = [tex]3^{4}[/tex]

According to the law of indices, if a term with a power is raised to a power, then the powers are multiplied together.

i.e., [tex](x^{m})^{n} = x^{mn}[/tex]

According to the given condition,

∴ [tex]81^{\frac{1}{4} }[/tex] = [tex](3^{4} )^{\frac{1}{4} }[/tex]

Applying the law of indices mentioned above,

[tex](3^{m})^{n} = 3^{4 X\frac{1}{4} }[/tex]

= 3.

Thus, the

[tex]81^{\frac{1}{4} }[/tex] can be simplified into 3.

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3(2x-2)=6(x-1)
How do you do this

Answers

Answer:

[tex]\large\bf\implies{infinitely \:many\: solutions}[/tex]

Alternate forms :

[tex] \large \bf \implies{x \in ( - \infty \: , \infty)}[/tex]

Step-by-step explanation:

[tex] \bf \longrightarrow{3(2x - 2) = 6(x - 1)}[/tex]

Apply the Distributive Property

[tex] \bf \longrightarrow{6x - 6 = 6x - 6}[/tex]

Rearrange variables to the left side of the equation

[tex] \bf \longrightarrow{6x - 6x = - 6 + 6}[/tex]

Apply the inverse property of addition

[tex] \bf \longrightarrow{0 = 0}[/tex]

Bases on the given conditions, the (system of) equation(s) has

[tex]\bf \longrightarrow{infinitely \:many\: solutions}[/tex]

What is it? Do y’all know

Answers

Answer: I believe it is ZERO

Step-by-step explanation:

Answer:

No Solution

Source: cymath.com

Step-by-step explanation:

what is the distance of (-3, 7) and (77, -11)

Answers

Answer: Option D is correct.

Step-by-step explanation:

Given: 7 and 11

We need to find the geometric mean of 7 and 11.

Geometric series whose common ratio is equal.

The geometric mean of two numbers is the square root of the product of two numbers.

If a, b and c are in GP then the geometric mean is b

The geometric mean of any two numbers a and b is

The given numbers are 7 and 11

Geometric mean is [tex]\sqrt 7x11\\[/tex]

Geometric mean: [tex]\sqrt{x} 77[/tex]

( 4, -3 ) ( 8 , -3 ) slope

Answers

the slope is (-7, -11) .

Solve this equation. Enter your ans
-4(x-26) = -200

Answers

-4x+104=-200
-4x=-96
4x=96
x=24
X=76 is the answer

Hope this helps!

Hello please can you help me for this i am new i will give all my points

Answers

Here you go!!!
…:))))

Juan and his children went into a restaurant where they sell drinks for $2 each and
tacos for $4 each. Juan has $40 to spend and must buy a minimum of 11 drinks and
tacos altogether. If a represents the number of drinks purchased and y represents
the number of tacos purchased, write and solve a system of inequalities graphically
and determine one possible solution.

Answers

The number of drinks purchased and the number of tacos purchased that will yield the inequality are; 2 and 9 respectively.

How to generate Inequality Graph?

We are given that;

a represents the number of drinks purchased.

y represents the number of tacos purchased

He must buy a minimum of 11 drinks and tacos altogether. Thus, the inequality that describes this is;

2a + 4y ≤ 40

a + y ≥ 11

The inequality graph that represent the given system of inequalities is as shown in the atatched file.

From the given inequality graph, we can tell that one possible solution is; (a, y) = (2, 9)

Thus, the number of drinks purchased and the number of tacos purchased that will yield the inequality are; 2 and 9 respectively.

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Evan charged Jill $32 for parts and $15 per hour to repair her bicycle. If he spent 4 hours repairing
her bike, how much does Jill owe him?

Answers

Answer:

$92

Step-by-step explanation:

32+4x where x is 15

32+(4*15)=?

32+60=92

Answer: $92
15 x 4 = 60
60 + 15 =92

Can someone help me with this one

Answers

Answer:

#9 has 8 vertices

# 10 has 5 vertices

Step-by-step explanation:

A vertex is is a point where two or more curves, lines, or edges meet.  The word "vertices" is the plural of the word "vertex."

simplify 6^5 * 2^3 * 6^4 / 12^3

^ is elevated
* multiplication
/ division

Answers

The simplified form of the expression is 6⁶

Simplifying an expression

From the question, we are to simplify the given expression

The given expression is

6^5 * 2^3 * 6^4 / 12^3

That is,

6⁵ × 2³ × 6⁴ / 12³

Simplifying

6⁵ × 2³ × 6⁴ / 12³

6⁵ × 6⁴ × 2³ / 12³

Applying the exponents rule

6⁵ ⁺ ⁴ × 2³ / 12³

6⁹ × 2³ / 12³

Expanding 12³, we get

6⁹ × 2³ / 6³ × 2³

= 6⁹ / 6³

= 6⁹ ⁻ ³

= 6⁶

Hence, the simplified form of the expression is 6⁶

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Doctors recommend us to eat between 3 to 8 percent of our bodyweight each day. If one
day someone eats 7.2 pounds, calculate the biggest weight the person can be by writing
an inequality to model this situation.

Answers

The biggest weight the person can be based on the recommendation by the doctor is 90 pounds.

How to calculate the value?

From the information, it was stated that doctors recommend us to eat between 3 to 8 percent of our bodyweight each day and that one day someone eats 7.2 pounds.

It should be noted that based on the information given, the highest percentage which is 8% will be used for the calculation.

Therefore, the biggest weight the person can be will be:

8% of x <= 7.2

0.08x <= 7.2

x <= 7.2/0.08

x <= 90 pounds

Therefore, the biggest weight the person can be based on the recommendation by the doctor is 90 pounds.

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Evaluate each logarithm.
log₂2⁵

Answers

After evaluating the logarithm log₂ 2⁵, we get the result as 5.

The common logarithm is also known as the base 10 logarithm. It is represented by log10 or simply log.

For example, the common logarithm of 1000 is written as log(1000). The common logarithm defines how many times we need to multiply by 10 to get the required output.  The natural logarithm is called the logarithm of base e. The natural logarithm is represented by ln or loge. Here, "e" stands for Euler's constant which is approximately equal to 2.71828.

For example, the natural logarithm of 78 is written as ln 78. The natural logarithm determines how much we need to multiply "e" to get the required output.

We need to evaluate log₂ 2⁵Using the property logₐ (mⁿ) = n logₐ m log₂ 2⁵ can be written as

log₂ 2⁵ = 5 log₂ 2

We know that logₐ a = 15 log₂ 2= 5

Therefore, after evaluating the logarithm log₂ 2⁵, we get the result as 5.

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Suppose
f
(
x
)
=

2
x
2
+
6
x
+
4
. Compute the following:

f
(

4
)
=



f
(
3
)
=

Answers

we get f(-4)= -52 and f(3)=4

suppose f(x)= -2x^2+6x+4

we have to compute f( -4)  and  f(3)

The value of f(-4) is found by substituting -4 into the equation per variable, solving and simplifying as needed, to get the answer.

f(x)= -2x^2+6x+4

we have to compute f( -4)  

then f( -4)= -2(-4)^2+6(-4) +4

               = -32-24+4

               = -52

similarly ,The value of f(3) is found by substituting 3 into the equation per variable, solving and simplifying as needed, to get the answer.

f(x)= -2x^2+6x+4

we have to compute f( 3)  

then f( 3)= -2(3)^2+6(3) +4

               = -18+18+4

               =4

Hence we get f(-4)= -52 and f(3)=4

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If f(x) = x-5, evaluate each of the following. Type a numerical answer in the space provided.
f(-1)=
f(0) =
f(1) =
f(2)=
f(5) =
f(8) =

Answers

Answer:

see explanation

Step-by-step explanation:

substitute the values of x, situated inside the parenthesis into f(x)

f(- 1) = - 1 - 5 = - 6

f(0) = 0 - 5 = - 5

f(1) = 1 - 5 = - 4

f(2) = 2 - 5 = - 3

f(5) = 5 - 5 = 0

f(8) = 8 - 5 = 3

Answer:f(-1) = -6f(0) = -5f(1) = -4f(2) = -3f(5) = 0f(8) = 3

Step-by-step explanation:

1) Substitute x = -1 into f(x) = x - 5

f(x) = x - 5f(-1) = (-1) - 5f(-1) = - 1 - 5f(-1) = -6

2) Substitute x = 0 into f(x) = x - 5

f(x) = x - 5f(0) = (0) - 5f(0) = 0 - 5f(0) = -5

3) Substitute x = 1 into f(x) = x - 5

f(x) = x - 5f(1) = (1) - 5f(1) = 1 - 5f(1) = -4

4) Substitute x = 2 into f(x) = x - 5

f(x) = x - 5f(2) = (2) - 5f(2) = 2 - 5f(2) = -3

5) Substitute x = 5 into f(x) = x - 5

f(x) = x - 5f(5) = (5) - 5f(5) = 5 - 5f(5) = 0

6) Substitute x = 8 into f(x) = x - 5

f(x) = x - 5f(8) = (8) - 5f(8) = 8 - 5f(8) = 3

Aris and Josiah are reading a 50-page book for their ELA class. Aris wants to know what page Josiah is reading. Josiah gives her two hints: 1. The product of the two page numbers he can see is 930. 2. The page he is reading is an odd-numbered page. What page is Josiah reading?

Answers

The two pages the boys are reading are pages 31, and 30. I'm not sure which is which. (would depend on who is reading the odd number page).

Josiah is reading page 31. The page he is reading is an odd-numbered page is 31 by factorizing number.

Step 1: Determine the factors of 930.

The factors of 930 are 1, 2, 3, 5, 6, 10, 15, 31, 62, 93, 155, 186, 310, 465, and 930.

Step 2: Identify the factors that correspond to odd-numbered pages in the book.

Since Josiah is reading an odd-numbered page,  eliminate the even factors.

This leaves  with the odd factors:

1, 3, 5, 15, 31, 93, 155, and 465.

Step 3: Determine which odd factor corresponds to a page number within the range of the book.

Since the book has 50 pages,  eliminate the odd factors greater than 50. This leaves us with the odd factors: 1, 3, 5, 15, and 31.

Step 4: Identify the odd factor that, when multiplied by its complement, equals 930, that is:

31 × 30 = 930,

so Josiah is reading page 31.

Therefore, Josiah is reading page 31 of the book.

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Solve each equation. Check your answers.
2 log (x+1)=5

Answers

2 log (x + 1) = 5 => x = 315.22, by properties of logarithm.

What is Logarithm?The opposite of exponentiation is the logarithm.This indicates that the exponent to which a fixed number, base b, must be raised in order to obtain a specific number x, is represented by the logarithm of that number.A number's natural logarithm is its logarithm to the base of the transcendental and irrational number e, which is roughly equivalent to 2.718281828459.

Given: 2 log (x + 1) = 5

=> log (x + 1) = [tex]\frac{5}{2}[/tex]

Raising both sides by 10, in order to remove the logarithm:

=> [tex]10^{log_{10}(x+1)} = 10^{2.5}[/tex]

=> x + 1 = 316.22 ( as [tex]a^{log_a(x)} = x[/tex])

=> x = 315.22

Hence, 2 log (x + 1) = 5 => x = 315.22, by properties of logarithm.

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