ONE-VARIABLE STATISTICS - Measuring the Center

6 important questions on ONE-VARIABLE STATISTICS - Measuring the Center

True or False. If we want to know how the data values vary from the mean, we need to find the standard deviation.

True

True or False. The Median isn't used for the IQR calculation.

True

How to compute the IQR?

Substract the the 1st quartile from the 3rd quartile.
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True or False. Boxplots make comparisons between five-number summaries much easier.

True

It is an easy way to graphically represent five number summaries.

Boxplot

True or False. Note that the last cumulative frequency entry must equal the frequency total.

True

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