Free HBS Data Analysis Questions and Answers

Question 1

Which of the following is the mean of the numbers 5, 7, 8, 10, and 15?

Accepted Answer

9

Answer

10

Answer

8

Answer

11

Question 2

In a class of 30 students, 18 are girls. What percentage of the class are girls?

Accepted Answer

60%

Answer

50%

Answer

40%

Answer

70%

Question 3

What is the median of the following set of numbers: 3, 7, 8, 12, 15?

Accepted Answer

8

Answer

7

Answer

12

Answer

15

Question 4

If the mode of a set of numbers is 4, which of the following sets could be the correct data set?

Accepted Answer

4, 4, 5, 6

Answer

1, 2, 3, 4

Answer

2, 3, 4, 5, 6

Answer

3, 5, 6, 7

Question 5

If 25% of a data set is 20, what is the total number in the data set?

Accepted Answer

100

Answer

80

Answer

50

Answer

40