Solution of problem N1292 Poisson probability theory

Solution of problem N1292 Poisson probability theory

1292. The telephone exchange serves 1000 subscribers. In this time interval, any subscriber independently of the others can make a call with a probability of 0.005. Find the probability that no more than 7 calls have been made in this interval.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

Discount for regular customers! If the total of your purchases from the seller Massimo86 exceeds:

• $30 discount 10%
• $20 discount 7%
• $18 discount 6%
• $15 discount 5%
• $12 discount 4%
• $9 discount 3%
• $6 discount 2%
• $3 discount 1%