If a dice is rolled 300 times, how many times do you predict to get a prime number?
First find the probability of rolling a prime number.
There are 6 equally likely outcomes: 1, 2, 3, 4, 5, 6. The possible outcomes that are prime are 2, 3, and 5. (A prime number is a number greater than 1 that is only divisible by 1 and itself.)
To find the probability of rolling a prime number, divide the number of outcomes of the event (rolling a prime number) by the number of all possible outcomes.
Then multiply the probability of rolling a prime number by 300.