Question

The probability of getting a 1 is 0.3

The dice is rolled 150 times
How many ones would you expect to roll?

Answer 1

Answer: 45

Explanation:

`\\`To calculate the probability of the number of times a 1 we appear , we have

`\\`number of times a 1 appeared / Total number of times the die is rolled.

`\\`Let x represent the number of times a 1 is gotten

`\\`And we have been given the probability of getting a 1 and also the total number of times the die is being rolled , substituting this inside the formula above , we have

`\\`0.3 = x / 150

`\\`x = 150 x 0.3

`\\`x = 45