4. Statistics and Probability

Linear Transformations Of Data — Quiz

Test your understanding of linear transformations of data with 5 practice questions.

Practice Questions

Question 1

A data set has mean $12$. Each value is increased by $7$. What is the new mean?

Question 2

A data set has standard deviation $5$. Each value is multiplied by $3$. What is the new standard deviation?

Question 3

A data set has median $8$. Each value is decreased by $2$. What is the new median?

Question 4

A data set has interquartile range $14$. Each value is increased by $9$. What happens to the interquartile range?

Question 5

A data set has standard deviation $2$. The data are transformed by $y=5x-1$. What is the new standard deviation?