From a group of six people,two individuals are to be selected at random.How many possible selections are there?
A)12
B)36
C)15
D)8

Question

Quizplus · Accepted Answer

To determine the number of possible selections, we use the combination formula, which is:

nCk = n! / (k!(n-k)!)

where n is the total number of items, k is the number of items selected.

So, in this case, we have n=6 and k=2. Substituting the values in the above formula, we get:

6C2 = 6! / (2!(6-2)!) = 15

Therefore, there are 15 possible selections of two individuals from a group of six people. The best choice is C.

From a Group of Six People,two Individuals Are to Be