Question

Sowen rolled two number cubes with sides numbered 1 through 6, 20 times. Her sums are recorded in the table below.49899462.1012879111087935What is the experimental probability of rolling a sum of 9?4/20Сь5/20Od4/365/36

Answer 1

The total number of experiment, N=20.

From the given data, 9 is obtained 5 times.

The number of times of getting 9, n=5.

Hence, the probability of getting a sum of 9 is,

$\begin{gathered} P=\frac{n}{N} \\ P=\frac{5}{20} \end{gathered}$

Hence, option b is correct.