A computerized system registers and stores information on the number of people who pass through a door to access a place

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A computerized system registers and stores information on the
number of people who pass through a door to access a place. The
system fails occasionally (probability of failure in 15% of cases),
stopping storing information. One day 40 people are expected to
arrive at the site. Select one or more than one: The deviation of
no failures that can occur if 40 people arrive is approximately
2.26. Or a. Ob. The probability that it fails in the event that
more than 3 people arrive is 0.95 OC, The average number of
failures that can occur if 40 people arrive is 6 The probability
that it fails in the registration of 8 people is 10.9 Approximate%.
Or e. ALL THE OPTIONS RAISED ARE INCORRECT.