Statistical Measures Test

Front

What do the "whiskers" represent on a box and whisker plot?

Back

The "whiskers" represent the Minimum and Maximum values of the data set.

Front

What is the range in statistics?

Back

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

Front

Identify the outlier in the following data set: 23, 34, 27, 7, 30, 26, 28, 31, 34.

Back

The outlier is 7.

Front

Is it possible to have three numbers in the middle of a data set?

Back

False, a data set can have one or two middle numbers, but not three.

Front

What is the first step when calculating the Mean Absolute Deviation (MAD)?

Back

Find the mean of the data.

Front

What is a box and whisker plot used for?

Back

A box and whisker plot is used to display the distribution of a data set and identify its quartiles.

Front

Define the term 'quartile'.

Back

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

Front

What is the median of the data set: 2, 3, 5, 7, 11?

Back

The median is 5.

Front

How do you find the mean of a data set?

Back

Add all the numbers together and divide by the total count of numbers.

Front

What does an outlier indicate in a data set?

Back

An outlier indicates a value that is significantly different from the other values in the data set.