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1.         A population is known to have a mean of 10 and a standard deviation of 1.1....

1.         A population is known to have a mean of 10 and a standard deviation of 1.1. A sample of size 32 is randomly selected from the population.

a.         What is the probability that the sample mean is less than 9.9?

             b.        What percent of the population is greater than 10.2?

             c.         What’s the probability that the sample mean is greater than 10.5?

math   Statistics-And-Probability   
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