FREE AST Data Analysis Questions and Answers

Question 1

What is the median of the following data set: 12, 15, 18, 20, 22?

Accepted Answer

18

Answer

15

Answer

17

Answer

20

Question 2

A graph shows monthly sales figures for a year. Which of the following is NOT a valid conclusion you can draw?

Accepted Answer

Sales figures for the next year will be higher.

Answer

The highest sales occurred in December.

Answer

Sales increased steadily from January to June.

Answer

Sales in April were less than those in May.

Question 3

If a bar graph shows a category with zero frequency, what does this indicate?

Accepted Answer

No observations fall into that category.

Answer

The data is incomplete.

Answer

The category was not measured.

Answer

The graph is inaccurate.

Question 4

A survey showed 40% of respondents prefer brand A, 35% prefer brand B, and 25% prefer brand C. If there were 200 respondents, how many preferred brand B?

Accepted Answer

70

Answer

40

Answer

50

Answer

80

Question 5

Which type of graph is best suited for showing the proportion of different categories in a data set?

Accepted Answer

Pie chart

Answer

Line graph

Answer

Bar graph

Answer

Scatter plot