Question

Gina pays $0.50 ecah time she plays a carnival game. The game is on a spinner with 12 equal sized sections labled 1 through 12. she wins a prize if the pointer lands 3,5 or 7. If gina spends $4 playing the game, predict the number of prizes she can expect to win

Answer 1

ANSWER
2 prizes

Explanation:

$4 ÷ $0.5 = 8

Total points on spinner = (1,2,3,4,5,6,7,8,9,10,11,12)

Required for winning = (3, 5, 7)

5+7 = 12

3/12

P(win) = 3/12 simplified is 1/4

(1/4) × (8) = 2

Therefore, the answer is two prizes

Answer 2

Two

Explanation:

3,5 or 7 out of possible 12 spins

3 / 12 of the time she will win

$ 4 is 8 spins

8 spins * 3/12 = 2 wins