Question

Caroline rolls a fair dice 90 times.

How many times would Caroline expect to roll an even number?
please answer quickly doing hw

Answer 1

The probability to roll a number greater than 3 is 3 over the 6 total (1,2,3,4,5,6).

That can be simplified to 1/2 for the probability.

If she rolls the dice 90 times 90 x 1/2 or 45 rolls will receive a number greater than 3.

Answer: 45