Members of the band sold 1150 worth of packages of pens and markers. They sold a total of 310 packages, including 10 more packag
es of pens than markers if one package of pens and one package of markers costs 7.50, what was the price of each package
1 answer:
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Answer: Mean = 760
Standard deviation = 6.16
Step-by-step explanation:
Given : The number of trials:
The probability that a certain protection system will be recovered :
We know that the mean and standard deviation of binomial distribution is given by :_
, where n is the number of trials and p is the probability of success.
Now, the mean and standard deviation of the number of cars recovered after being stolen is given by :-
Hence, the mean is 760 and standard deviation is 6.16 .