Question
Asked Feb 19, 2019
224 views

Hello, Please help me navigate this because I don't even know how to
start answering these questions based on the graph attached. Thanks
1.) Estimate the equation of the line.

2.) Use the slope of the line in a meaningful sentence or two.

3.) What observations can you interpret from the graph?

4.) A recent survey found that in a particular city of all poor children born in 1980, 11,500 enrolled in college, and 1024 graduated from college by age 24. Scale this rate to 100.

5.) From the information in the article, in a town consisting of 2,300 rich students born in 1980, how many would you expect to graduate college by the age of 24? Use the 95th percent income percentile as constituting rich (note: what % of children attend college based upon the parents 95th income percentile). Scale this rate to 100.

6.) From a random sample: Out 1,000 rich kids born in 1980, how many will attend college and how many will graduate from college by the age of 24?

How Family Income Predicts Children's College Chances
100
SSO
70
60
50
4O
30
20
10
20th
60th
7oth
50th
Parent's Income Percentile
1st
10th
30th
40th
80th
90th
10Oth
help_outline

Image Transcriptionclose

How Family Income Predicts Children's College Chances 100 SSO 70 60 50 4O 30 20 10 20th 60th 7oth 50th Parent's Income Percentile 1st 10th 30th 40th 80th 90th 10Oth

fullscreen
check_circle

Expert Answer

Step 1

Hello there! I see that there are more number of questions on this graph. I can only help with first 3 questions in it. According to our policies cannot answer more than that. Kindly make a new request for remaining questions.

Given a graph with Parents Income percentile on x axis and percentage of children who attend college on y axis.

Here we choose two data points (10,30) and (30,45) as two data points on the line and we use them to find the line equation.

fullscreen
Step 2

The line equation of a straight line passing through (x1,y1) and (x2,y2) is given as shown below

Substituting the two known data points on line (10,30) and (30,45) we get the line equation as  x -2y = 50

fullscreen
Step 3

Let us write the equation of line in slope intercept form y=mx+b where m is slope and b is y intercept as shown below

y = (1/2)x + 25.

From this we can say that the slope of the line is 1/2.

As the slope is positive we can say that if the percentile of parents income...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Probability

Related Probability Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Suppose that the probability density function of the length of computer cables is f (x) = 2x/(52) fo...

A: Let X be the continuous random variable which denotes the length of the computer cables. The probabi...

question_answer

Q: 3 three sided dice (with sides labeled 1 , 2 and 3) are rolled and their sum is recorded . what is t...

A: There will be total 27 possible events for this experiment.(a) For rolling a sum of 5, there will be...

question_answer

Q: 61%9:15 PM Q STAT WA 7.3 Hmwk - Area X G hemoglobin - GoX + G somnelance - G X porp https://www.weba...

A: Note:Thank you for posting the question! Since your question has more than 3 parts, we have solved t...

question_answer

Q: The following table gives the total endothermic reactions involving sodium bicarbonate   Final T...

A: Identifying the distribution:It is given that reactions are independent. The random variable X repre...

question_answer

Q: Let S = {0, 1, 2, 3, 4, 5, 6, 7, 8} be a uniform sample space, and determine the probability that a ...

A: Solution:Concept of probability:Probability deals with the likelihood of occurrence of a given event...

question_answer

Q: The following table gives the total endothermic reactions involving sodium bicarbonate   Final T...

A: Note:Hi! Thank you for posting the question. However, from the given data, the problem was not compl...

question_answer

Q: A computer system allows user IDs that are six characters long. If only alphanumeric characters are ...

A: We have a computer system that allows user IDs which are six characters long,And, there is only alph...

question_answer

Q: Quick Start Company makes 12-volt car batteries. After many years of product testing, the company kn...

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is ...

question_answer

Q: If a​ true-false test with 15 questions is​ given, what is the probability of scoring   ​(A) Exactly...

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials, s...