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?

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

Answer 1

we are given a event of rolling as die several times:

Outcome: [1 2 3 4 5 6]

Number of times outcome occurred: [10 6 4 8 6 6]

We have to find the experimental probability of rolling a 1 or a 5

number of times 1 or 5 came up= 10+6=16

and total number of outcomes= 10+6+4+8+6+6= 40

P( rolling a 1 or a 5)=

number of times 1 or 5 came up/ total number of outcomes

= 16/40

= 2/5

Hence, the experimental probability of rolling a 1 or a 5 is:

2/5