ETS Statistical Analysis

Question 1

What is the mean of the data set: 4, 8, 6, 10, 2?

Accepted Answer

6

Answer

8

Answer

4

Answer

10

Question 2

What type of graph is best for showing trends over time?

Accepted Answer

Line graph

Answer

Pie chart

Answer

Bar graph

Answer

Scatter plot

Question 3

What is the range of the data set: 3, 7, 1, 9, 5?

Accepted Answer

8

Answer

5

Answer

7

Answer

9

Question 4

What does a pie chart represent?

Accepted Answer

Parts of a whole as percentages

Answer

Changes over time

Answer

Comparisons between groups

Answer

Scatter patterns

Question 5

What is correlation?

Accepted Answer

A statistical relationship between two variables

Answer

Proof of cause and effect

Answer

An average value

Answer

A type of graph

Question 6

What is the mode of: 2, 3, 3, 4, 5, 3, 6?

Accepted Answer

3

Answer

4

Answer

2

Answer

5