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 Q that exactly two visitors will buy a pack of candy?  Choose the correct choice from the following options
A) 0.343  B) 0.147  C) 0.189  D) 0.063  E) 0.027
30.1892 * (3/10)^2 * 7/10   = 3 * 9/100 * 7/10   = 189/1000= 
<gadget id="calculator">189/1000</gadget>
<output>189/1_000 = around 0.189</output>
0.189=Q   Answer - 0.189
<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 Q that exactly two visitors will buy a pack of candy?