a) Fish are bred in large batches and allowed to grow until they are caught at random for sale. When caught, the length of the fish are normally distributed with Standard Deviation 2 cm and only 10% of the fish < 7cm long. Find the mean length of the caught fish.
b) A large number, n of fish are caught at random for sale and it is required that the probability of there being 10 or fewer fish in the catch which measure < 7 cm long is to be 0.025 or less. using a suitable approximation, derive the approximate inequality
n^2 - 245n + 11000 ≥ 0
c) Find the least possible of fish to be caught
I'm frustrated... I couldn't understand the second part of the question. But I know how to solve the first part.
2007-03-30
03:25:45
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2 answers
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asked by
kudoushinichi88
1
in
Science & Mathematics
➔ Mathematics