The probability of winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect to have?
The expected number of winning tickets can be calculated by multiplying the total number of tickets by the probability of winning:
Expected number of winning tickets = 40 tickets x 0.15 = 6 tickets
Therefore, you should expect to have 6 winning tickets if you bought 40 tickets and the probability of winning is 15%.