Question

A 12-sided solid has faces numbered 1 to 12. The table shows the results of rolling the solid 200times. Find the experimental probability of rolling a number greater than 10.ResultsNumber1 2 3 4 5 6 7 8 9Jrolled1019 15 14 17 18 15 17 17 17 19 15 17 200Frequency11.2 TotalThe experimental probability of rolling a number greater than 10 is ]

Answer 1

Given that,

12-sided solid has faces numbered 1 to 12.

The table shows the results of rolling the solid 200 times

To find probability of rolling a number greater than 10.

The number of ways that the event (rolling a number greater than 10) is n(11)+n(12)

That is,

`=15+17=32`

Total possible events is 200

Probability of rolling a number greater than 10 is,

`=(32)/(200)=(4)/(25)`

Answer is :

Probability of rolling a number greater than 10 is 4/25.