The probability that a visitor at the mall buys a pack of candy is 50%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?	Choose one
A) 0.225	B) 0.25	C) 0.325	D) 0.375	E) 0.5
One case is: candy - candy - no candy   The probability is 5/10*5/10*5/10 = 125/1000   There are 3 such cases, so we should multiply this probability by 3.   P(exactly 2 buy candy) = 125/1000 * 3 = 375/1000= 
<gadget id="calculator">375/1000</gadget>
<output>3/8 = around 0.375</output>
0.375   The answer is 0.375.
<result>D</result>
The probability that a visitor at the mall buys a pack of candy is 50%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?