A fair coin has 2 distinct flat sides-one of which bears t

This topic has expert replies
Moderator
Posts: 2003
Joined: 15 Oct 2017
Followed by:6 members
Source: Official Guide

A fair coin has 2 distinct flat sides-one of which bears the image of a face and the other of which does not-and when the coin is tossed, the probability that the coin will land faceup is 1/2. For certain values of M, N, p, and q, when M fair coins are tossed simultaneously, the probability is p that all M coins land faceup, and when N fair coins are tossed simultaneously, the probability is q that all N coins land faceup. Furthermore, M < N and 1/p + 1/q = 72.

In the table, select a value for M and a value for N that are jointly consistent with the given information. Make only two selections, one in each column.

Image

OA:
[spoiler]M=3
N=6[/spoiler]