Temperature, x. Chirps per

second,y

88.6 20

93 3 19.8

80.6 17.1

69.7 14.7

69.4 15.4

79.6 15

80.6 16

76.3 14.4

71.6 18.4

84.3 15.5

82 17.1

83.3 16.2

82.6 17.2

83.5 17

1. Complete Linear Correlation Coefficient.

2. Find the least-squares regression line.

3. Interpret the slope and y-intercept.

4. Predict the chirps per second if it is 83.3F

5. Compute and interpret R-squared.

Part C

1. Of the 1000 homeruns, it was found that 85 were caught by fans. What is the probability that a randomly selected homerun is caught by a fan?

2. The results of student on a campus survey are the following:

Very likely Somewhat

Freshman. 5. 8. 7. 10

Sophomore. 8. 11. 8. 5

Junior. 10. 11. 9. 6

Senior 14. 17. 9. 2

a. What is the probability that a randomly selected junior is a prospective donor?

b. Among prospective donors, what proportion are juniors?

c. Are the events "prospective donor"

and "junior" independent?

3. A Mexican restaurant offers a combo plate where you pick 3 items from a list of 8 possible entrees.

a. How many different combo plates can be created is an entree can't be selected twice?

b. A "meal deal" consists of an entree, a drink, and a dessert. How many different meal deals are available,if there are 8 possible entrees, 10 types of drinks and 4 possible desserts?

4. A student has five papers to wrote this week. He will complete each paper before beginning the next one.

a. How many different ways can he choose to complete all five papers?

b. If he only has enough time to do 2 of the papers today,how many different ways can he order the 2 papers?

5. If the probability of a randomly selected student will pass the exam is 0.90.

a. Find the probability that a randomly selected student will not pass this exam.

b. Find the probability that two randomly selected students will both pass the exam.

c. If two students are randomly selected, find the probability that either one (or both) will pass the exam.

d. Suppose five students are randomly selected. Find the probability that all five students will pass the exam.

e. Suppose five students are randomly selected. Find the probability that at least one of these five students pass the exam.