Mathematics, 06.06.2021 04:10, richtercatrina16
MAC
2. In a study to determine a person's yearly income 10 years after high school, it was found that the two biggest
predictors are number of math courses taken and number of hours worked per week during a person's senior
year of high school. The multiple regression equation generated from a sample of 20 individuals is
Y=6000 + 4540 Xr+ 1290 X2
Let Xi represent the number of mathematics courses taken and X2 represent hours worked. The correlation
between income and mathematics courses is 0.63. The correlation between income and hours worked is 0.84,
and the corelation between mathematics courses and hours worked is 0.31.2
a. What is the dependent variable?
b. What are the independent variables?
c. Explain what 4540 and 1290 in the above equation tell us.
d. What is the predicted income if a person took 8 math classes and worked 20 hours per week during her
or his senior year in high school?
e. Compute R and R2 and interpret them.
3. Define the term probability and explain briefly what do you understand by the term nohahility distribution?
Answers: 2
Mathematics, 21.06.2019 15:30, nsuleban9524
Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.
Answers: 1
Mathematics, 21.06.2019 18:30, lionscoachjose
Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.
Answers: 2
Mathematics, 21.06.2019 19:20, joelpimentel
Which number line represents the solution set for the inequality - x 24?
Answers: 3
MAC
2. In a study to determine a person's yearly income 10 years after high school, it was found th...
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