The class sizes of the Introductory Psychology courses at a college are shown below.
121, 134, 106, 93, 149, 130, 119, 128
The college adds a new Honors Introductory Psychology course with 45 students. What effect does the new class size have on the center and
spread of the class sizes of the Introductory Psychology courses at the college?
OA. The value of the center decreases and the distribution has a smaller spread.
O B. The value of the center increases and the distribution has a larger spread.
OC. The value of the center increases and the distribution has a smaller spread.
OD. The value of the center decreases and the distribution has a larger spread.
Answers
Answer:
pic of question
Step-by-step explanation:
option D) The value of the center decreases and the distribution has a larger spread.
What is the mean of a distribution?Mean is the measure of the central tendency or the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.
Given here the distribution as 121, 134, 106, 93, 149, 130, 119, 128
therefore their mean is = (121+134+106+ 93+ 149+ 130+ 119+ 128)/8
= 122.5
Again after the new course was added the new mean is
= (121+134+106+ 93+ 149+ 130+ 119+ 128+45)/9
= 113.88
Hence clearly the mean has decreased and the distribution has a larger spread.
Learn more about the mean here:
https://brainly.com/question/13451489
#SPJ2
Related Questions
Which answer best describes the system of equations shown in the graph?
Inconsistent
Consistent and independent
Consistent and dependent
Answers
Answer:
we conclude that the given system of equations is consistent and independent.
Hence, option B is true.
Step-by-step explanation:
From the figure it is clear that the two lines intersect at one point.
In other words, there is only one point of intersection of the given system of equations.
It means the system of equations contains exactly one solution.
We know that If a consistent system contains exactly one solution, it is termed as an independent.
Therefore, we conclude that the given system of equations is consistent and independent.
Hence, option B is true.
Ted's company has received an order to print 106 pages. Ted's company has 100 machines, each of which can print 104 pages a day.
Ted’s company can print the 106 pages in
1 day
1/10
10
100
.
In exponent form, this number of days can be represented as
10^2
10^1
10^0
10^-1
Answers
Answer:
1 day, 10^0
Step-by-step explanation:
Plato correct
Answer:
1 Day 10^0
Step-by-step explanation:
If f(x) = (x – 4)2 + 3, what is f(-3)?
Answers
Answer:
-11
Step-by-step explanation:
If the two is that close to the parenthesis(I think it's this one since there is no sign to separate.) Then :
(-3-4)2 + 3 (given)
-6 - 8 + 3 (distribute)
-11 (combine like terms)
Else If it's not touching the parenthesis and there is space between parenthesis and 2 then:
(-3-4) 2 + 3 =
-7 + 2 + 3 =
-2
"The Kid Laroi" - Rapper-Songwriter.
When creating equivalent fractions (creating common denominators) you only need to change the denominators.
O True
O False?
Answers
I need help with this
Answers
the slope intercept is y= -5/2x-6
hope this helps and have a wonderful day :)
Ellie and Jamie like to bake cookies. Ellie baked 24 chocolate chip cookies, and Jamie baked p peanut butter cookies. Together they baked a total of 56 cookies. Write an equation that can be solved for p to find the number of cookies Jamie baked? A) 24/p = 56 B) p - 24 = 56 C) p + 24 = 56 B) 24p = 56
Answers
Answer:
C) p + 24 = 56
Step-by-step explanation:
The total number of cookies baked = Number of cookies Ellie baked + Number of cookies Jamie baked
Ellie baked 24 chocolate chip cookies.
Jamie baked p peanut butter cookies.
Total of 56 cookies.
Hence:
56 = p + 24
Therefore, the equation that can be solved for p to find the number of cookies Jamie baked is
p + 24 = 56
Option C is the correct option
If triangle CBA = triangle CDE, what is the distance between E and C?
A. 6 cm
B. 8 cm
C. 10 cm
D. 16 cm
Answers
Answer:
c) 10 cm
Step-by-step explanation:
EC = AC
AC = 10 then so does EC
Answer:
C
Step-by-step explanation:
If a point is translated down 6 units, what are the new coordinates expressed as an algebraic representation?
Answers
Answer:
(x , y - 6)
Step-by-step explanation:
The y-axis deals with up and down motions. To shift a point downwards six units, subtract 6 from the value do the y-coordinate.
A mixed of purple paint contains 4 teaspoons of red paint and 10 teaspoons of blue paint.To make the same shade of purple paint using 40 teaspoons of blue paint how much red would you need? A.12 B.14 C.16 D.160
Answers
Answer:
Number of teaspoon of red paint = 16
Step-by-step explanation:
Given:
Mixture contain = 4 teaspoon red paint and 10 teaspoons blue paint
New Mixture = 40 teaspoons blue paint
Find:
Number of teaspoon of red paint
Computation:
4 teaspoon red paint / 10 teaspoons blue paint = Number of teaspoon of red paint / 40 teaspoons blue paint
Number of teaspoon of red paint = 16
is y = -7 a linear equation
Answers
Answer:
yes
Step-by-step explanation:
it's a linear equation
Answer:
yes
Step-by-step explanation:
hellllllllllllllllllllllllllllllllloo
HELPP PLEASE WITH EXPLANATION THANK YOUU!!!
A -1.8
B -1.6
C -1.5
D -1.3
Answers
Answer:
-1.6 | B
Step-by-step explanation:
Simple adding.
AB =
Round your answer to the nearest hundredth.
С
4
A
25°
?
В
Answers
Answer:
Question not properly explained
last year Rafael opened an investment was count with $5,500 at the end of the year the amount in the account has been decreased by 22.6 how much is this decrease in dollars how much money was in his account at the end of last year ?
Answers
Answer: The new amount is 0.78*5500. Which is 4290. The decrease is 5500-4290=1210.
For each sequence find the first four terms and the tenth term 3n-4
Answers
Answer:
= 1, 2, 5, 8 and 26
Step-by-step explanation:
To find the first 4 terms, substitute n = 1, 2, 3, 4 into the formula
a₁ = 3(1) - 4 = 3 - 4 = - 1
a₂ = 3(2) - 4 = 6 - 4 = 2
a₃ = 3(3) - 4 = 9 - 4 = 5
a₄ = 3(4) - 4 = 12 - 4 = 8
The first 4 terms are
- 1, 2, 5, 8
Substitute n = 10
a₁₀ = 3(10) - 4 = 30 - 4 = 26
Answer:
Below.
Step-by-step explanation:
We get the first 4 terms by plugging in n = 1 2 3 and 4:
3(1) - 4 = -1 , 3(2) - 4 = 2 ...
First 4 terms are
-1, 2, 5, 8
10th term = 3(10) -4 = 26.
PLEASE HELP GIVING BRAINLY!!! (if you could at least help me with 1 or even both I’ll give brainly!!)
Answers
Answer:
1. 4
Step-by-step explanation:
24 - 20, if you add the the square then the rectangle, then subtract
What is the range of the data?
Answers
Answer:
The range of baskets per game is 5 baskets.
Please help
generator 1: C(x) = 0.03x^2+26x+24
generator 2: K(x) = 0.01x^2+38x+118
write a function rule for the sum of the costs of these two generators. Enter your answers in the boxes.
T(x) = C(x) + K(x)
T(x) = (0.03+ ? )x^2 + (26+38)x +(24+118)
T(x) = ?x^2 + ?x + ?
SOLVE FOR THE BLANKS. PREFERABLY WITH STEPS SHOWN.
Thank you
Answers
Answer:
[tex]T(x)= 0.04x^2+64x+142[/tex]
Step-by-step explanation:
Sum of Functions
We are given the functions for the cost of two generators:
[tex]C(x) = 0.03x^2+26x+24[/tex]
[tex]K(x) = 0.01x^2+38x+118[/tex]
We are required to find the function for the sum of the costs of the two generators:
T(x)= C(x)+K(x)
We'll add both functions:
[tex]T(x)= 0.03x^2+26x+24+ 0.01x^2+38x+118[/tex]
To find the sum of both functions, we collect like terms:
[tex]T(x)= (0.03+0.01)x^2+(26+38)x+(24+118)[/tex]
[tex]\boxed{T(x)= 0.04x^2+64x+142}[/tex]
i can't reverse I-I-I-I-I-I-I-IT she told put my love in the bag and I'll never get hurt I ain't running from your love I'm not fast you make me feel better not worst must us cover up my graves from my past cause I'm a whole different person your a blessing not a curse and I don't wanna reverse I-I-I-I-I-I-I-IT
2:15
Answers
Answer: That is so true and how has ur day been and also can u pls give me brainliest it will make my day :)
Step-by-step explanation:
F(x)=x vertically stretch by 4 flip over x axis what is g(x)
Answers
Step-by-step explanation:
Multiply all outputs by –1 for a vertical reflection. The new graph is a reflection of the original graph about the x-axis.
Multiply all inputs by –1 for a horizontal reflection.
5.Footlocker buys Air Jordans for $30 a pair. They mark it up 75%. How much is the mark-up on a pair of Air Jordans
If you buy a pair of Air Jordans as mentioned in question #5, how much would you end up paying? (Hint: original amount + mark-up amount)
Answers
Answer:
$52.50
Step-by-step explanation:
What you do is you move the decimal two times to the left from 75%.
0.75*?=?
Take the orginal price and multiply ($30) by 0.75.
0.75*30= $22.50
Take 22.50 and add that to your original amount.
$22.50+$30= $52.50 or $52.5
A right triangle has a line of symmetry select all conclusions that must be true
Answers
Answer:
Where are the choices?
a rigth triangle is a 90 degree angle.
In geometry and trigonometry, a right angle is an angle of exactly 90°, corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles.-wikipedia
no one can report because I gave wikipedia credit
Step-by-step explanation:
your welcome:)
Ill mark brainliest please answer correctly
Answers
Answer:
B
Step-by-step explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count. - that's how you find the mean
there for the dots is equal to the number of hours there are 72 hours watched per week in total there are 40, the number rounded down if you can see the dots to the left are much more than to the right there-for it will decrease
Answer:
The mean will increase
Step-by-step explanation:
The mean is the average of the data. 40 is higher than the previous mean of the data meaning that if 40 is added to the data it will incrase.
Which congruence theorems can be used to prove AABR = AACR? Select three options.
A. HL
B. AS
C. SSS
D. ASA
E. AAS
Answers
Answers:
A) HL
B) SAS (I'm assuming you meant to say SAS instead of AS)
C) SSS
========================================================
Explanation:
The square angle marker tells us we have 90 degree angles. So these are right triangles.
Because we're dealing with right triangles, we could use HL which stands for "hypotenuse leg". The hypotenuse is AR for either triangle, and you could use either of these two pairs for the leg
AB = AC (one possible pairing), or,BR = CR (another possible leg pairing)-----------------------
The tickmarks tell us which sides are the same length. We can see that
AB = AC (single tickmark)BR = CR (double tickmarks)We also know that angle ABC = angle ACR because all right angles are congruent. These facts allow us to use SAS (side angle side). I'm assuming you meant to say "SAS" instead of "AS" for choice B.
-----------------------
SSS stands for "Side Side Side". It means if we know that three pairs of sides are congruent, then we can prove the triangles congruent overall.
The three pairs of congruent sides are:
AB = AC (single tickmark)BR = CR (double tickmarks)AR = AR (shared overlapped side; reflexive property)-----------------------
Side notes:
We can rule choice D out because we don't have enough info to use ASA. We would need info about another pair of congruent angles.Similarly, AAS can't be used either. We only have info about one pair of angles (not two). So we can rule out choice E.i need to find the distance!whats the distance?
Answers
Answer:
Exact Form:
√ 61 (square root )
Decimal Form:
7.81024967 …
Step-by-step explanation:
Use the distance formula to determine the distance between two points.
What is the slope and y-intercept of the equation 8x +
+ 2y = 18
Show work
Please
Answers
Answer:
SLOPE = - 4
y-intercept = 9
Step-by-step explanation:
Slope = - 8/2 = - 4
Y-INTERCEPT = 18/2 = 9
The y intercept would be 9 and the slope would be -4
Explanation:
8x+2y=18
-8x -8x
2y= -8x+18
2y/2= -8x/2+18/2
y=-4x+9
So you would basically subtract 8x on both sides then divide by 2. I hope this helped!
pa sagot po please need help
Answers
Answer:
Step-by-step explanation:
1). f(x) = 2x
f(-3) = 2(-3) = -6
f(1) = 2(1) = 2
f(4) = 2(4) = 8
Ordered pairs → (-3, -6), (1, 2), (4, 8)
2). f(x) = 2x + 1
f(-3) = 2(-3) + 1 = -5
f(1) = 2(1) + 1 = 3
f(4) = 2(4) + 1 = 9
Ordered pairs → (-3, -5), (1, 3) and (4, 9)
x -3 1 4
f(x) -5 3 9
3). f(x) = -3x
f(-3) = -3(-3) = 9
f(1) = -3(1) = -3
f(4) = -3(4) = -12
Ordered pairs → (-3, 9), (1, -3), (4, -12)
x -3 1 4
f(x) 9 -3 -12
Please help I will give Brantley if right Question 1 (5 points)
(04.01)
Which unit rate is equivalent to 15 miles per gallon? (5 points)
1) 30 miles
3 gallons
2) 3 gallons
30 miles
3) 4 gallons
60 miles
4) 60 miles
4 gallons
Answers
Explanation: 60:4=15 so it will be 15 miles per 1
Lisa collects 30 shells on the beach. She gives 2/5 of them to her brother. How many shells did she give him?
Answers
Answer:
She gives him 12 shells
Step-by-step explanation:
30/5=6
6*2=12
Lisa Gave Her Brother 12 Shells
Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answers
Answer:
x = 9 units
Step-by-step explanation:
[tex]\frac{x}{54}[/tex] = [tex]\frac{8}{48}[/tex]
x = [tex]\frac{54*8}{48}[/tex] = 9 units
What is the answer here? lol
The x-intercepts are also known as the __________ of a parabola.
Answers
Answer:
x-intercept is also known as y=0