Question 1173725: In a restaurant, a survey shoed that 42% of patrons always order the house specialty. if the seating capacity of the restaurant is 80.
a. Find the mean, variance and standard deviation of people who order the house specialty
b. about how many seats should be reserved for the patrons whp order the house specialty
c. on a given day, if the restaurant is full what is the probability that at least 25 of the patrons will order the house specialty
Answer by ikleyn(52812)   (Show Source):
You can put this solution on YOUR website! .
If the restaurant is full, then (according to the condition), it is not a probability problem, at all.
The mean is always 0.42 of 80.
Standard deviation is 0 (zero).
If you expect to get another answer, then REVISE your condition.
Actually, what is written in the post, IS NOT WHAT YOU WANTED to write.
And definitely is not what SHOULD BE WRITTEN in it . . .
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