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The lengths of the sardines received by a cannery have a mean of 4.64 inches and...

The lengths of the sardines received by a cannery have a mean of 4.64 inches and s standard deviation of 0.25 inch. If the distribution of these lengths can be approximated closely with a normal distribution, what percentage of all these sardines are

a) Shorter than 4.00 inches

b) From 4.40 to 4.80 inches long

Math   Statistics-And-Probability   
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