sloane50
03.06.2020 •
Mathematics
Dori charges 60 customers £1 to play a game. The probability of a customer winning is 0.35 and the prize is £2. How many of the 60 customers can Dori expect to win and how much profit will Dori make?
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Ответ:
21 people will win, so the profit will be £18
Step-by-step explanation:
0.35 x 60 = 21
21 x 2 = 42 (the amount of money to give away to prize winners)
If 60 people enter, she has £60. Subtracting £42 in winning payouts from this leaves her with a £18 profit.
Ответ:
-3
Step-by-step explanation: