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A consumer price analyst claims that prices for liquid crystal display (LCD) computer monitors have a...

A consumer price analyst claims that prices for liquid crystal display (LCD) computer monitors have a mean of $ 200 and a standard deviation of $ 50.

1. What is the probability that a randomly selected LCD computer monitor costs less than $ 210? Assume here that the prices are normally distributed.

2. You randomly selected 16 LCD compute monitors. What is the probability that their mean cost is less than $ 210? Assume here that the prices are normally distributed

3. You randomly selected 49 LCD compute monitors. What is the probability that their mean cost is less than $ 210?
Math   Statistics-And-Probability   
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