KYOTE Statistics and Probability

Question 1

A student scored 72, 85, 90, 68, and 95 on five tests. What is the mean score?

Accepted Answer

82

Answer

85

Answer

78

Answer

90

Question 2

What is the median of the data set: 14, 7, 21, 3, 18?

Accepted Answer

14

Answer

7

Answer

18

Answer

21

Question 3

In the data set {4, 7, 7, 9, 12, 7, 3}, what is the mode?

Accepted Answer

7

Answer

4

Answer

9

Answer

12

Question 4

The high temperatures for a week were 78, 82, 75, 90, 83, 79, and 85°F. What is the range?

Accepted Answer

15

Answer

12

Answer

10

Answer

7

Question 5

A bag contains 5 red, 3 blue, and 2 green marbles. What is the probability of randomly selecting a blue marble?

Accepted Answer

3/10

Answer

1/3

Answer

3/5

Answer

1/5

Question 6

A class recorded weekly study hours: 2, 4, 3, 5, 4, 6, 4, 3, 5, 4. What is the mode?

Accepted Answer

4

Answer

3

Answer

5

Answer

6

Question 7

A fair six-sided die is rolled. What is the probability of rolling a number greater than 4?

Accepted Answer

1/3

Answer

1/2

Answer

1/6

Answer

2/3