The table shows the results of rolling a number cube with sides labeled 1 through 6 several times.

What is the experimental probability of rolling a 1 or a 5?

Enter your answer as a fraction in simplest form in the box.

$\text{Basic}$
$x$$y$$x^2$$\sqrt{ }$$\frac{x}{ }$
$x\frac{ }{ }$
$x^{ }$$x_{ }$$\degree$$\left(\right)$$\abs{ }$$\pi$$\infty$
Outcome Number of times outcome occurred
1 10
2 6
3 4
4 8
5 6
6 6

1 answer

To find the experimental probability of rolling a 1 or a 5, we first need to find the total number of outcomes where a 1 or a 5 is rolled.

Total times rolling a 1 or a 5 = 10 (rolling a 1) + 6 (rolling a 5) = 16

Total number of outcomes = 10 + 6 + 4 + 8 + 6 + 6 = 40

Experimental probability of rolling a 1 or a 5 = $\frac{16}{40}$ = $\frac{4}{10}$ = $\frac{2}{5}$