A club has 10 members they will be choosing a president vice

A club has 10 members, they will be choosing a president, vice-president and a treasurer. Assuming choosing is done at random.

What is the probabibility that sandra will be chosen president and santiago will be treasurer?

There are 10P3 = 720 ways to select the officers.

In the given, sandra and santiago are already fixed, and there are 8 ways to choose a vice president.

Hence, the probability is

P = 8/720 = 1/90 = 0.011111111 [answer]