Answer to Question #133959 in Statistics and Probability for Sreeja

Question

A dice is thrown two times. What is the probability that the sum Is neither 8 nor 9?

Answer 1

If a dice is thrown 2 times then the total number of outcomes are as under:-

6C1*6C1 = 36

which can be represented as under-

The number of outcomes where the sum of the number on the dice is neither 8 nor 9 is marked in yellow in the above table = 27

Hence the probability P of getting an outcome from any of the yellow marked numbers

P = 27/36 = 0.75