MEan, Median, Mode, Range, & Quartile Test

Front

What is the mean of a set of numbers?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the number of items.

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order and identify the middle number. If there are two middle numbers, add them together and divide by 2.

Front

What is the mode of a set of numbers?

Back

The mode is the number that appears most frequently in a data set.

Front

What is the range of a set of numbers?

Back

The range is the difference between the maximum and minimum values in a data set.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a data set.

Front

What is the third quartile (Q3)?

Back

The third quartile (Q3) is the median of the upper half of a data set.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1). It measures the spread of the middle 50% of the data.

Front

If a data set has the numbers 2, 3, 5, 7, 8, what is the median?

Back

The median is 5.

Front

True or False: The median can be a value that is not in the data set.

Back

True.