Question

The probability that John recieves junk mail is 11 percent. If he receives 94 pieces of mail in a week, about how many of them can he expect to be junk mail.a. 5 b. 15 c. 10 d.20

Answer 1

10 (option C)

Step-by-step explanation:

The probability of getting a junk mail = 11%

Number of mails received = 94

Amount that will be junk mail = The probability of getting a junk mail × Number of mails received

Amount that will be junk mail = 11% × 94

= 0.11 × 94 = 10.34

Since we can't have decimal number of mails, we would approximate to the nearest whole number

10.34 to the nearest whole number is 10

Hence, 10 junk mails are expected