Mean, median, mode, range, & plots

Front

What is the median?

Back

The median is the middle value in a data set when the numbers are arranged in order.

Front

What is the term for the median of the lower half of the data?

Back

Lower Quartile.

Front

Find the MODE of the following data: red, blue, red, green, purple, red, green.

Back

The mode is red, as it appears most frequently.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the upper quartile (Q3) and the lower quartile (Q1).

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the minimum value from the maximum value.

Front

What is the mode of this data set: 9, 7, 5, 31?

Back

The mode is 5, as it appears most frequently.

Front

What does it mean if a data set has no mode?

Back

It means that no number appears more than once in the data set.

Front

How do you find the median in a data set with an even number of values?

Back

You find the median by averaging the two middle numbers.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the minimum, lower quartile, median, upper quartile, and maximum.

Front

What is the upper quartile?

Back

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