Solution of problem N2324 Laplace probability theory

Solution of problem N2324 Laplace probability theory

2324. The probability of ripening of a cornstalk with three cobs is p = 0.8.
To find:
a) the probability that among the 625 stems of the experimental plot the number of such stems will be 492 pieces.
b) the most probable number of stalks with three cobs on the experimental plot.

Additional information:

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