Caroline rolls a fair dice 90 times. How many times would she expect to roll a number greater then 3

Question

Mathematics

Kaley Crosby

22 November, 01:06

Caroline rolls a fair dice 90 times. How many times would she expect to roll a number greater then 3

+5

Answers (1)

Know the Answer?

Lucas Fox · Answer 1

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