1 suppose a sales-person makes a sale on 55 percent of customer contacts. in a normal week, the sales person contacts 8 customers. The probability that he will make at least two sales is A) 0.189 B) 0.179 C) 0.982 D) 0.220 E) 0.437 2 ) the probability that he will make two sales at most is A) 0.480 B) 0.089 C) 0.220 D) 0.937 E) 0.540