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Mathematics 18 Online
OpenStudy (anonymous):

a commercial prawn fisherman recorded the number of prawns he took from each trap. The average number of prawns per trap was 230 with a standard deviation of 22. What number of prawns per trap woud you expect in the interval symmetrical about the mean where 80% of the numbers would be found? don't just need the answer i need to know how to find it please and thank you!

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