Question

Mrs. Jameson's math test scores are represented by the following data.

A number line depicts math test scores. The data points plotted are from 55 through 65, 65 through 78, 78 through 92, and 92 through 100.

Which of the following lists the lower quartile, median, and upper quartile (in that order)?

Answer 1

Answer: A quartile is a type of quantile that splits a data set into four equal parts. The first quartile (Q1) is also known as the lower quartile and is the value that separates the lowest 25% of the data from the rest. The second quartile (Q2) is also known as the median and is the value that separates the lowest 50% of the data from the highest 50%. The third quartile (Q3) is also known as the upper quartile and is the value that separates the lowest 75% of the data from the highest 25%.

In this case, the lower quartile (Q1) is 65, the median is 78, and the upper quartile (Q3) is 92.

Explanation: