A large pizza chain tracks how many pizzas each customer buys per order.
The number of pizzas customers buy in any given order has a mean of 2.5
pizzas and a standard deviation of 1.5 pizzas.
Suppose that we take random samples of 7 orders from this population
and calculate as the sample mean number of pizzas purchased per order.
We can assume that the orders in each sample are independent.
What will be the shape of the sampling distribution of ?