Question

If 7 coins are tossed, how many outcomes are there?

Answer 1

7 coins are tossed, each coin has two possibilities therefore total number of possibilities are 2^7 = 128. The possibilities of obtaining 4 heads and 3 tails is 7C4 = 7C3 = 35.

Answer 2

128 outcomes

Explanation:

No. of outcomes for a coin is given by :

2^n [where n is the number of times a coin is tossed]

=> 2⁷

=> 2 x 2 x 2 x 2 x 2 x 2 x 2

=> 4 x 4 x 4 x 2

=> 16 x 8

=> 128