I need help with question 1. c)

please should formula used

Managing Ashland Multicomm Services The Ashland MultiComm Services ( AMS ) marketing de If a sample of 50 prospective customers is selected and no partment wants to increase subscriptions for its 3 - For - All free premium channels are included in the 3 - For All servic telephone , cable , and Internet combined service . AMS mar offer , given past results , what is the probability that keting has been conducting an aggressive direct - marketing a . fewer than 3 customers will subscribe to the 3 - For - All campaign that includes postal and electronic mailings and lings service offer ? telephone solicitations . Feedback from these efforts indicates b . O customers or I customer will subscribe to the 3 - For that including premium channels in this combined service All service offer ? very important factor for both current and prospective sub C . more than 4 customers will subscribe to the 3 - For All scribers . After several brainstorming sessions , the marketing service offer ? department has decided to add premium cable channels as a d . Suppose that in the actual survey of 50 prospective no - cost benefit of subscribing to the 3 - For - All service . customers . 4 customers subscribe to the 3 - For All ser The research director , Mona Fields , is planning to con vice offer . What does this tell you about the previous duct a survey among prospective customers to determine estimate of the proportion of customers who would how many premium channels need to be added to the 3 - For - ubscribe to the 3 - For All service offer ? All service in order to generate a subscription to the service Based on past campaigns and on industry - wide data , she e 2 . Instead of offering no premium free channels as in Prob timates the following Jem 1 , suppose that two free premium channels are in luded in the 3 - For All service offer . Given past results Number of Free Probability of what is the probability that Premium Channels Subscription a . fewer than 3 customers will subscribe to the 3 - For- All ervice offer ? 0.02 b . O customers or I customer will subscribe to the 3 - Fo 0.04 All service offer 0.06 C . more than 4 customers will subscribe to the 3 - For - All 0.07 service offer ? 0.08 0.085 1 . Compare the results of ( a through ( c ) to those of I e . Suppose that in the actual survey of 50 prospective customers , 6 customers subscribe to the 3 - For All ser vice offer . What does this tell you about the previous