Question 1

What is the semi-interquartile range?

Accepted Answer

Half the difference between the first quartile and the third quartile

Answer

The sum of the first quartile and the third quartile

Answer

The average of the first quartile and the third quartile

Answer

The difference between the minimum and the maximum values

Question 2

What is the interquartile range?

Accepted Answer

The difference between the third quartile and the first quartile

Answer

The average of the first quartile and the third quartile

Answer

The sum of the median and the mode

Answer

The difference between the minimum and the maximum values

Question 3

What is the semi-interquartile range used for?

Accepted Answer

To measure the spread or variability of a dataset

Answer

To calculate the mode of a dataset

Answer

To calculate the mean of a dataset

Answer

To compare multiple datasets

Question 4

How is the interquartile range calculated?

Accepted Answer

Subtracting the first quartile from the third quartile

Answer

Adding the first quartile to the third quartile

Answer

Multiplying the first quartile by the third quartile

Answer

Dividing the first quartile by the third quartile

Question 5

What is the formula to calculate the interquartile range?

Accepted Answer

Q3 - Q1

Answer

Q1 + Q3

Answer

Q3 / Q1

Answer

Q1 - Q3

Question 6

What is the sample variance?

Accepted Answer

A measure of variability calculated as the sum of squared differences from the mean divided by the sample size minus 1

Answer

The difference between the highest and lowest values in a dataset

Answer

The average distance of data points from the mean

Answer

The sum of all values in a dataset

Question 7

What is variability?

Accepted Answer

A measure of how spread out a set of data is

Answer

A measure of correlation

Answer

A measure of central tendency

Answer

A measure of how large a data set is

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