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.)
tidyr, dplyr, and ggplot2 are loaded.
Este exercício faz parte do curso
Sampling in R
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Expand a grid representing 5 8-sided dice
dice <- ___
# See the result
dice