Chapter 12, Problem 16PT4

To determine

To find: Either of the below is most definitely part of the distribution of X likelihood.

Answer to Problem 16PT4

  

Explanation of Solution

Given:

  

Option (b) is false since a number greater than 7 can't be rolling at 0 rolls. The majority of experiments will require 1 roll to achieve a total of more than 7 and it is highly likely that this will not happen at first attempt. This is increasingly impossible.

Hence, the correct option is (a)