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Mathematics, 18.07.2020 01:01 shyra94

The lengths of new pencils are normally distributed with mean 11 cm and standard deviation 0.095 cm. (i)Find the probability that a pencil chosen at random has a length greater than 10.9 cm. (ii)Find the probability that, in a random sample of 6 pencils, at least two have lengths less than 10.9 cm.

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