Solution of problem N326 Laplace probability theory

Solution of problem N326 Laplace probability theory

326. During the month, the loan department of the bank issued 68 mortgage loans. The bank manager estimates the probability of delay in payment of such loans as 0.2. What is the probability that during the crediting period will be overdue:
A) at least 15 credits?
B) no more than 18 credits?
C) 16 credits?

Additional information:

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

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