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Mariana [72]
2 years ago
14

A statistician studies the relationship between income and the choice of individuals to attend college. He notices that during a

particular time period, the average individual income doubled but fewer individuals attended college. He concludes that income is negatively related to college enrollments. The statistician has failed to account for the fact that tuition rates tripled over the same time period. Why is the reported conclusion misleading in this case?​
Mathematics
1 answer:
Gnoma [55]2 years ago
6 0

The conclusion is is misleading because the extraneous variable, cost of tuition was not accounted for in the experiment.

<h3>What are the variables in this experiment?</h3>

The independent variable is the variable that the person carrying out an experiment changes or manipulates. This variable is income. The dependent variable is the variable that is being measured in an experiment. This variable is college enrolment.

The extraneous variable is the variable  that is not been researched in the experiment but it has the potential to influence the results of the experiment. This variable is the cost of tuition.

To learn more about independent variables, please check: brainly.com/question/26287880

#SPJ1

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Find the solution of this system of equations.
Vilka [71]
The answer is (2,0)

Explanation

So I’m gonna use substitution to help me solve this problem. I’m gonna solve for x.

X-y=2

+y. +y

X= y + 2

Now that we have solved for x we are going to plug it into the first equation!
Shown like this


Y+2 - 10y = 2

Then we solve it as a normal problem

So first we combine light terms

-9y+2=2

Then we isolate the variable

-9y+2=2
-2. -2

-9y = 0

Then we divide by -9 on both sides

-9y /-9 = 0 / -9
Y = 0

Now that we solved for y we plug it into one the equations to get the x value!

X - 0 = 2
X=2

The solution is (2,0)

I hope this helped you! Pls mark as brainliest

6 0
3 years ago
An 12-ounce bottle of orange juice costs $2.64. What is the cost of the orange juice per ounce?
8_murik_8 [283]

Answer:

22 cents per ounce

Step-by-step explanation:

3 0
2 years ago
Enrollment in a school has grown exponentially since the school opened. A graph depicting this growth is shown. Determine the pe
Yanka [14]

Answer:

4.6%

Step-by-step explanation:

Let the horizontal axis be represented by x and the vertical axis be represented by f(x) or y

The general exponential function is of the form:

f(x) = a(b)^{x}

Here,

a = value at the starting of the graph

b = growth factor

In order to find the percentage rate of growth, we need to find the value of b, the growth factor. From the graph we can see two points on the graph: (20, 80) and (25, 100). This means for x = 20, value of f(x) is 80. Using this point in the function equation, we get:

80 = a(b)^{20}                             Equation 1

Using the second point (25, 100) in the function equation, we get:

100 = a(b)^{25}                             Equation 2

Dividing Equation 2 by Equation 1, we get:

\frac{100}{80}=\frac{ab^{25}}{ab^{20}}\\\\ 1.25=b^{5}\\\\ b=1.046

Using the value of b, the function equation becomes:

f(x) = a(1.046)^{x}

This means, after every year, the number of enrollments is 1.046 times the previous year. Or in other words, the number of enrollment is 0.046 times more the previous year. This shows the number of enrollments grow by 0.046 every year which is equal to 4.6%

Thus, the percentage rate of growth is 4.6%

7 0
3 years ago
Read 2 more answers
Please help!!! I'm super confused with this one, show work so that I can figure out what I did wrong.
givi [52]

Answer: The length of CU is 117 units.


Step-by-step explanation:

Given: ΔWCD≈ΔWUV

We know that if two triangles are similar, then their corresponding sides are proportional.

∴ \frac{WU}{WC}=\frac{WV}{WD}

\frac{36x-1}{26}=\frac{110}{20}\\\Rightarrow\ 36x-1=\frac{11}{2}\times26\\\Rightarrow36x-1=143\\\Rightarrow\ 36x=143+1\\\Rightarrow\ 36x=144\\\Rightarrow\ x=4

∴ WU=36(4)-1=143

Also , WU=WC+CU

⇒CU=WU-WC

⇒CU=143-26=117 units

5 0
3 years ago
Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
OleMash [197]

Answer:

For every 5 students scoring in the 60s, there were 2 students scoring in the 70s.

Step-by-step explanation:

There are 40 scorers in the 60s and 16 scorers in the 70s. These are ratios, so the ratio between the 60s and the 70s would be 40/16. This fraction can be simplified down to 5/2. This means that for every 5 students scoring in the 60s, 2 scored in the 70s.

8 0
2 years ago
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