Question

In a casino, the chance of winning a certain game is 14.5%. If you play the game 20 times, what’s your best estimate for the number of times you would win? Round off your answer to the nearest whole number.

Answer 1

Expected number of wins=number of plays times the probability of winning

w=20(14.5/100)

w=20(0.145)

w=2.9

w≈3 

So you would expect to win 3 times out of 20 attempts (rounded to the nearest whole number of wins)