# Computing probability using normal distribution

The diameter of small Nerf balls manufactured at a factory in china is expected to be approximately normally distributed with a mean of 5.2 inches and a standard deviation of 0.08 inches. suppose a random sample of 20 balls are selected, what percentage of sample means will be less than 5.15 inches?

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#### Solution Summary

The solution gives detailed steps on computing probability using normal distribution in a real life example.

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