Math Math Statistics and Data Analysis 3

Question 1

A survey shows 40% of 200 people prefer coffee. How many people prefer coffee?

Accepted Answer

80

Answer

40

Answer

60

Answer

100

Question 2

What is the probability of rolling a number greater than 4 on a standard six-sided die?

Accepted Answer

1/3

Answer

1/2

Answer

2/3

Answer

1/6

Question 3

The data set is: 5, 5, 5, 10, 15. Which measure of central tendency gives 5?

Accepted Answer

Mode

Answer

Mean

Answer

Median

Answer

Range

Question 4

A frequency table shows scores: 70 (×3), 80 (×4), 90 (×3). What is the mean score?

Accepted Answer

80

Answer

75

Answer

85

Answer

78

Question 5

If two events A and B are independent and P(A) = 0.3 and P(B) = 0.4, what is P(A and B)?

Accepted Answer

0.12

Answer

0.7

Answer

0.34

Answer

0.1

Question 6

A stem-and-leaf plot has stems 1, 2, 3 with leaves 5|6|8, 1|3|7|9, 2|4|6. What is the largest value?

Accepted Answer

36

Answer

39

Answer

38

Answer

34