Statistics Quiz

What is the mean of the following numbers: 4, 8, 6, 10, 12?

• 8

• 7

• 9

• 10

The middle value of an ordered data set is called the:

• Mean

• Median

• Mode

• Range

Which of the following best describes the mode?

• The value that appears most frequently in a data set

• The difference between the highest and lowest values

• The average of all values

• The square root of the variance

If a data set has an outlier, which measure of central tendency is least affected?

• Mean

• Median

• Mode

• Range

What type of graph is most appropriate for displaying the relationship between two quantitative variables?

• Bar Chart

• Pie Chart

• Histogram

• Scatter Plot

In a data set, the difference between the highest and lowest value is called the:

• Variance

• Interquartile Range

• Standard Deviation

• Range

What is the probability of rolling a 4 on a fair six-sided die?

• 1/4

• 1/6

• 1/3

• 1/2

Which of the following is a measure of spread in a data set?

• Mean

• Median

• Standard Deviation

• Mode

Which graph is best for displaying the distribution of a single quantitative variable?

• Histogram

• Bar Chart

• Pie Chart

• Line Graph

A student scored in the 85th percentile on a test. This means: