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Exercise

Exact sampling distribution

To quantify how the point estimate (sample statistic) you are interested in varies, you need to know all the possible values it can take, and how often. That is, you need to know its distribution.

The distribution of a sample statistic is called the sampling distribution. When we can calculate this exactly, rather than using an approximation, it is known as the exact sampling distribution.

Let's take another look at the sampling distribution of dice rolls. This time, we'll look at five eight-sided dice. (These have the numbers one to eight.)

An eight-sided die.

tidyr, dplyr, and ggplot2 are loaded.

Instructions 1/3

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Expand a grid representing 5 8-sided dice. That is, create a tibble with five columns, named die1 to die5. The rows should contain all possibilities for throwing five dice, each numbered 1 to 8.