Problem
Fifteen items or less: The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. \begin{tabular}{c|cccccc} $x$ & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline$P(x)$ & 0.05 & 0.25 & 0.30 & 0.20 & 0.15 & 0.05 \end{tabular} Send data to Excel Part: $0 / 4$ Part 1 of 4 (a) Find $P(5)$. \[ P(5)=\square \sqrt{x} \]
Solution
Step 1 ：The problem provides a probability distribution table for the number of customers in line at a supermarket express checkout counter. The probability of having 5 customers in line, denoted as \(P(5)\), is given directly in the table.
Step 2 ：From the table, we can see that \(P(5) = 0.05\).
Step 3 ：Therefore, the final answer is \(\boxed{0.05}\).
