Mrs. G Data/stats Review

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is the mode in a data set?

Back

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

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers together and divide by the total count of numbers.

Front

What is a box and whisker plot?

Back

A box and whisker plot is a graphical representation of a data set that shows the median, quartiles, and extremes.

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

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 lower quartile (Q1)?

Back

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

Front

What is the upper quartile (Q3)?

Back

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

Front

How do you find the interquartile range (IQR)?

Back

The interquartile range (IQR) is found by subtracting the lower quartile (Q1) from the upper quartile (Q3).

Front

What does a higher median indicate in a box and whisker plot?

Back

A higher median indicates that the central tendency of the data is higher.