Question

The expression 3C2 represents the number of ways of:

a choosing 2 items at a time from a set of 3. c. arranging, in order, 2 items from a set of 3.

b. choosing 3 items at a time from a set of 2. d. arranging, in order, 3 items from a set of 2.

Answer 1

Answer: A

Explanation:

edge :)

Answer 2

Option a.

Explanation:

The given expression is

`^3C_2`

C denotes combination and P denotes permutation.

`^nC_r` means choosing r items at a time from a set of n.

`^nP_r` means arranging r items at a time from a set of n.

The given expression is a combination, where n=3 and r=2. It means the given expression represents the number of ways of choosing 2 items at a time from a set of 3.

Therefore, the correct option is a.