I need an explanation with details and step by step on how to do part 2 please.

5.4 Section Exercis Question 5 of 7 (1 point) | Attempt 2 of Unlimited View question in a popup Mail Ordering A mail-order company receives an average of 6 orders per 500 solicitations. Part 1 of 2 V Find the mean number 2. of orders in 100 solicitations. 2 = 1.2 Part: 1 / 2 Part 2 of 2 If it sends out 100 advertisements, find the probability of receiving at least 3 orders. The probability is |0.9561 . (Round your answer to four decimal places.) X