Question

jakob rolls an 8 - sided die that is numbered from 1 through 8 a total of 400 times. about how many times should jakob expect to roll a 5?
○ 50
○ 80
○ 250
○ 350

Explanation:

Step1: Find single roll probability

Probability of rolling a 5: $\frac{1}{8}$

Step2: Calculate expected number

Multiply probability by total rolls: $400 \times \frac{1}{8}$

Answer:

A. 50