WorksheetsBellwork: Day 21
Total questions: 3
Worksheet time: 3mins
Name
Class
Date
1.
a)
A
b)
B
c)
C
d)
D
e)
E
2.
Suppose that a will be randomly selected from the set {-4, -2, -1, 0, 3} and that b will be randomly selected from the set {-1, 0, 1, 2}. What is the probability that ab < 0?
a)
A
b)
B
c)
C
d)
D
e)
E
3.
A study on TV viewing reported the following results: The correlation between the number of hours of TV watched each day and a person’s average weight gain is 0.75. The correlation between the number of hours of TV watched each day and the number of books read each month is -0.45. Which of the following statements are true?
a)
i only
b)
ii only
c)
i and iii
d)
iv only
e)
i and iv only
100 %
