Statistics Skills Assessment Quiz

• 7

• 9

• 8

• 10

• 5

• 6.25

• 8

• 7.5

Which of the following is NOT a measure of central tendency?

• Mean

• Mode

• Range

• Median

• 3

• 5

• 8

• 9

A box plot shows a data set with a minimum of 2, first quartile (Q1) of 4, median of 6, third quartile (Q3) of 8, and maximum of 10. What is the interquartile range (IQR)?

• 2

• 4

• 6

• 8

If a data set is skewed to the right, which measure of central tendency is likely to be the largest?

• Mean

• Median

• Mode

• All are equal

• 17

• 18

• 19

• 20

Which sampling method ensures every member of the population has an equal chance of being selected?

• Stratified sampling

• Cluster sampling

• Simple random sampling

• Convenience sampling

• 5

• 8

• 15

• 20

Which of the following is NOT required to construct a box plot?

• Minimum

• Mean

• Median

• Quartiles