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 R that exactly two visitors will buy a pack of candy?
Choose the correct option.
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=R   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 R that exactly two visitors will buy a pack of candy?