Question

From a group of 11 people, you randomly select 4 of them. what is the probability that they are the 4 oldest people in the group?

Answer 1

Answer:

1/ 130 is the probability that they are the 4 oldest people in the group.

Step-by-step explanation:

In the question, we are given; group of 11 people, 4 are selected randomly, find probability they are the 4 oldest people from the group

P(O)= favorable number of outcomes / total number of outcomes

= 1 / 11C4

=  11! / (11-4)! 4!

=  7! *4! / 11!

=1/ 130

Therefore, 1 / 130 is the probability that they are the 4 oldest people in the group.

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