Question

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.
Outcome Number of times outcome occurred
1 10
2 6
3 4
4 8
5 6
6 6

Answer 1

2/5

Step-by-step explanation: I took the test

Answer 2

`(2)/(5)`

Explanation:

Given :

Outcome Number of times outcome occurred

1 10

2 6

3 4

4 8

5 6

6 6

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

Solution:

No. of times dice rolled = 10+6+4+8+6+6=40

No. of times 1 occured = 10

So, probability of getting 1 =
`(10)/(40)`

No. of times 5 occured = 6

So, probability of getting 5 =
`(6)/(40)`

So, probability of rolling a 1 or a 5 =
`(10)/(40)+(6)/(40)`

=
`(16)/(40)`

=
`(2)/(5)`

Hence the experimental probability of rollin 1 or a 5 is
`(2)/(5)`.