4. Sam has 6 rose bushes. He counted the flowers on each of them. There are 8, 2, 5,
4, 11 and 9. Find the Standard Deviation. Is 13 a "Usual” number of flowers?
Answers
Answer:
No
Step-by-step explanation:
SD=8+2+5+4+11+9÷6
13=10+9+20÷6
13=19+20÷6
13=39÷6
13=6.5-False=No
13 is not a usual number. A further solution of the given query is provided below.
Given:
Number of observations = 6
Series 8, 2, 5, 4, 11, 9
The Mean will be:
= [tex]\frac{Sum \ of \ observation}{Total \ number \ of \ observations}[/tex]
By substituting the values, we get
= [tex]\frac{8+2+5+4+11+9}{6}[/tex]
= [tex]\frac{32}{6}[/tex]
= [tex]6.5[/tex]
Now,
The Standard deviation will be:
= [tex]\sqrt{\frac{|x-\bar x|^2}{n} }[/tex]
= [tex]\sqrt{\frac{(1.5)^2+(4.5)^2+(1.5)^2+(2.5)^2+(4.5)^2+(2.5)^2}{6} }[/tex]
= [tex]3.0956[/tex]
13 is not within the range of standard deviation. Thus it is not a usual number.
Learn more about standard deviation here:
https://brainly.com/question/12402189
Related Questions
Write an equation to match this graph. i will give brainlyest
Answers
Answer:
5÷7
Step-by-step explanation:
Im guessing this or adfibg
. Adam's average (arithmetic mean) on four tests is 80. Which of the following CANNOT be the number of tests on which he earned exactly 80 points?
(A) 1 (B) 2 (C) 3 (D) 4
Answers
Answer:
40 is answer of this question l know this much onl
Answer:
I think the answer is 4
Step-by-step explanation:
Hope this helps have an amazing day/month/year!
Wrtire 55, 555 expanded form. How does the value of each 5 compare to the value of the 5 to its rights
Answers
Answer: ↓↓
Step-by-step explanation:
55,555 = 50,000 + 5,000 + 500 + 50 + 5
50 = 10 × 5
500 = 100 × 5
50,00 = 1000 × 5
50,000 = 10,000 × 5
Hope I helped!
8x - 2 + 16
answer this pls
Answers
Answer:
8x+14
Step-by-step explanation:
7. In a soccer game, Andrew scores 3 fewer goals than Elsie. Elsie scores 9 goals. How many goals did Andrew score?
Complete the bar diagram and write an equation to match the story.
9️⃣
⬜️ 3️⃣
___ ⚪️ ___= ___
Answers
Answer:
Step-by-step explanation:
.7. In a soccer game, Andrew scores 3 fewer goals than Elsie. Elsie scores 9 goals. How many goals did Andrew score?
Quadrilateral EFGH was dilated and rotated 90° clockwise about the origin to form quadrilateral EFGH! Which part of quadrilateral EFG'H'is congruent to quadrilateral EFGH?
Answers
Answer: It’s angle measures
Step-by-step explanation: iready
Express the product of 2x^2 +7x-10 and x+5 in Standard form.
Answers
Answer:
2x^3 + 17x^2 + 25x - 50
Step-by-step explanation:
In distributions in which many scores differ greatly from the distribution’s mean, the bigger the:
A) statistical significance.
B) correlation.
C) reliability.
D) standard deviation.
Answers
Answer:
In distributions in which many scores differ greatly from the distribution’s mean, the bigger the:
D) standard deviation.
Step-by-step explanation:
The more spread out or variable a data distribution is, the greater its standard deviation. A standard deviation is the square root of the variance. A mean is an average of all set of available data. It is obtained by dividing the value of data by the number of the data set. The standard deviation is the statistics that basically measure the distance from the mean, and is calculated as the square root of variance determined by each data point relative to the mean.
A rectangular box has length 20cm, width 6cm and height 4cm. find how many cubes of size 2cm that will fit into the box.
Answers
Answer:
[tex]\boxed{\pink{\sf The \ number \ of \ cubes \ that \ can \ be \ fitted \ is 60 .}}[/tex]
Step-by-step explanation:
Given dimensions of the box = 20cm × 6cm × 4cm .
Dimension of the cube = 2cm × 2cm × 2cm .
Therefore the number of cubes that can be fitted into the box will be equal to the Volume of box divided by the Volume of the cube. So ,
[tex]\boxed{\red{\bf \implies No. \ of \ cubes \ = \dfrac{Volume \ of \ box}{Volume \ of \ cube }}}[/tex]
[tex]\bf \implies n_{cubes} = \dfrac{20cm \times 6cm \times 4cm .}{2cm \times 2cm \times 2cm } \\\\\bf\implies n_{cubes} = 10 \ times 3cm \times 2cm \\\\\implies \boxed{\bf n_{cubes}= 60 }[/tex]
Hence the number of cubes that can be fitted in the box is 60 .Last month, a car dealership sold 80 cars. Of all the cars sold, 15% of them were red. How many cars that were sold were red?
Answers
Answer:
12 red cars
Step-by-step explanation:
15% is 0.15
So, you do 80 × 0.15, which is 12.
Solve each equation.
7x^2 = 49
ANSWER:
X=
Answers
Answer:
x=3.5
Step-by-step explanation:
7(3.5)^2=49
7(7)=49
This statement is true after substituting 3.5 for x.
Answer:
x = [tex]\sqrt{7}[/tex]
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helps! Please mark as brainliest.
Thanks!
What is the slope of the line shown below?
(-1,6)
(2,-3)
o A. 1/3
O B. -1/3
C. -3
D. 3
Answers
Answer:
C
[tex]slope = \frac{(y _{2} - y _{1})}{(x _{2} - x _{1}) } \\ = \frac{( - 3 - 6)}{(2 - ( - 1))} \\ = \frac{ - 9}{3} \\ slope = - 3[/tex]
given the function f(x)=4-2x: if the domain is -4,0,5 find the range
Answers
Answer:
{12, 4, -6}
Step-by-step explanation:
f(x)=4-2x
x = -4
f(-4) = 4 - 2(-4) = 12
x = 0
f(0) = 4 - 2(0) = 4
x = 5
f(5) = 4 - 2(5) = -6
aaaaaaaaaaaaaaaaaaaaaaaaaa
Answers
Answer:
Eut
Step-by-step explanation:
fooyyyyyyyyyyyyyddffghhgyfdxdvvrvrvrhntbrvd. vsvd ebe. d dvd
The noise level of a library is about 40 decibels. The noise of traffic has a rating of about 85 decibels. How many times stronger is the noise of traffic than the noise of a library?
Answers
Answer:
2.125
Step-by-step explanation:
LIbrary noise = 40 decibels
traffic noise = 85 decibels
how many does 40 take to make 85? = X
40X=85
X=85/40
2.125
Somebody please help me :(
Answers
Answer:
A, C, E
Step-by-step explanation:
Factory M makes 200 screwdrivers per hour.
Factory N makes 100 screwdrivers per hour.
can anyone help me?? thank you!
Answers
Answer:
39 is the answer for this
Find the ninth term of the sequence
sprt(5), sprt(10), 2 sprt(5)
Answers
Answer:
16sqrt5
Step-by-step explanation:
Notice that the next term is the previous term multiplied by sqrt2.
So we can take sqrt5 and multiply it by sqrt2, 8 times to get the ninth term.
sqrt2 ^8 = 16.
So 16sqrt5
So sqrt(2)^8(sqrt(5))
The answer is (B) 16sqrt(5)
Was she old enough?
A: Yes
B: Please yes
C: if u don't say yes I'm going to jail please say yes
Answers
Answer:
what are you talking about
Step-by-step explanation:
kerry has 3 quarts of oil for her motorcycle if she uses 2/5 of a quart each week how many weeks will the oil last
Answers
Answer:
12 weeks
Step-by-step explanation:
a student walks 2 kilometers in 30 minutes. What is the students average speed in kilometers per hour?
Answers
Answer:
4 km/h
Step-by-step explanation:
Answer:
4 kilometers per hour
Step-by-step explanation:
Help plz:)))I’ll mark u Brainliest
Old MacDonald had a farm, and on the farm he had 10 pigs8 horses, 12 sheep, and 18 cows. What is the ratio of the number of cows to the number of pigs? (Write your answer as a fraction in simplest form.)
Answers
Answer:
18/10=9/5
Step-by-step explanation:
determine the value of x
Answers
Answer:
21
Step-by-step explanation:
Given the ratio 2 green to 4 pink to 3 yellow (2:4:3), in a bag of 27 jellybeans, how many yellow jellybeans are in the bag?
Answers
27:9=3
2*3=6
4*3=12
3*3=9
So:green:6
Pink:12
Yellow:9
The number of yellow jellybeans will be 9.
It is given that total number of jellybeans in a bag are 27 which are in ratio 2 green to 4 pink to 3 yellow or 2:4:3
We have to calculate the number of yellow jellybeans in the bag.
What will be the ratio of girls , if there are 80 students in a college , out of which 60 are male ?
The ratio of girls will be [tex]\frac{80-60}{80}[/tex] = [tex]\frac{20}{80}[/tex] = [tex]\frac{1}{4}[/tex] or 1:4.
As per the question ,
The ratio of jellybeans in a bag is 2 green to 4 pink to 3 yellow or 2:4:3.
Total number of jellybeans in the bag is 27.
So ,
Let's assume the common factor as x.
No. of green jelly = 2x
No. of pink jelly = 4x
No. of yellow jelly = 3x
We can write this as ;
2x + 4x + 3x = 27
9x = 27
x = 27 ÷ 9
x = 3
So , the number of yellow jellybeans will be ;
= 3 × x
= 3 × 3
= 9
Thus , the number of yellow jellybeans will be 9.
To learn more about ratio click here ;
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.
Which function is equivalent to g(x)=x2 - 15%-542
O
g(x)= ( x-18)( x + 3)
g(x)= ( x-9)( x + 6)
g(x) = (x+18)(x-3)
g(x)= (x+9)(x-6)
Answers
Answer:
fortnite
Step-by-step explanation:
need points
Question 6 of 14 Type the correct answer in the box. Use numerals instead of words. Joe owns a fast-food restaurant and wants to know the average time it takes for customers to receive their orders. His restaurant serves about 500 customers a day. He timed 5 orders, and the order times he collected, given in minutes, are shown below. Can the approximate order fulfillment time for all of the restaurant's customers be calculated from the given data? If so, calculate it. Non-integer answers should be rounded to the nearest tenth. If no assumption can be made, type "0" in the box. The approximate order fulfillment time for all of the restaurant's customers is minutes.
Answers
Answer:
The approximate order fulfillment time for all of the restaurant's customers is 0 minutes.
brian has reduced his cholesterol level by 6% after his last check up. if his original level was 180,what is his approximate cholesterol level now
Answers
Which of the following options will definitely balance the third scale?
Answers
Answer:
I'd say b... But I'm not very confident about it.. Let me know if it's right.
Duncan's Bakery sold one customer 1 dozen chocolate cookies and 10 dozen oatmeal cookies
for $49. The bakery also sold another customer 1 dozen chocolate cookies and 9 dozen
oatmeal cookies for $45. How much do the cookies cost?
A dozen chocolate cookies cost $
and a dozen oatmeal cookies cost $
Answers
Answer:
Dozen Oatmeal = $4 and Dozen Chocolate = $9
Step-by-step explanation:
Dozen Oatmeal:
10 dozen oatmeal and 1 dozen chocolate =$49
9 dozen oatmeal and 1 dozen chocolate = $45
The second customer bought 1 less dozen and paid $4 fewer dollars, therefore 1 dozen oatmeal must equal $4
Dozen Chocolate: let C = 1 dozen chocolate
10 dozen oatmeal + 1 dozen chocolate = $49
(10 x $4) + C = $49
$40 + C = $49
-40 -40
C = $9
1 dozen chocolate cookies = $9
Claire is going to invest $2,600 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what interest rate, to the nearest hundredth of a percent, would be required in order for Claire to end up with $4,300?
Answers
Answer:
Rate of interest r = 2.83 % (Approx.)
Step-by-step explanation:
Given:
Amount invested p = $2,600
Amount get A = $4,300
Number of year n = 18
Find:
Rate of interest r
Computation:
A = p(1+r)ⁿ
4,300 = 2,600(1+r)¹⁸
(1+r)¹⁸ = 1.653846
Rate of interest r = 2.83 % (Approx.)
Answer: 2.80%
Step-by-step explanation:
Delta Math