the probability of winning a game is 25% . How many times should you expect to win if you play 40 times

40 *.25 = ?

To calculate the expected number of wins, multiply the number of attempts by the probability of winning in each attempt. In this case, the probability of winning is 25% or 0.25, and you play 40 times.

Expected number of wins = Probability of winning × Number of attempts
Expected number of wins = 0.25 × 40
Expected number of wins = 10

So, if you play the game 40 times with a 25% chance of winning each time, you can expect to win approximately 10 times.