The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy? Choose the correct choice from the following answers
A) 343 B) 147 C) 189 D) 063 E) 027
•P(Buy) = 3/10, P(No Buy) = 7/10   •2 Yes, 1 No = 3/10*3/10*7/10 = 63/1000   •3 Possibilities = YYN + YNY + NYY = 3(63/1000) = 189/1000= 
<gadget id="calculator">189/1000</gadget>
<output>189/1_000 = around 0.189</output>
.189%   Answer is 189.
<result>C</result>
The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?