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Suppose the lengths of green beans for a particular farm are Normally distributed with a mean...

Suppose the lengths of green beans for a particular farm are Normally distributed with a mean of 7 inches and a standard deviation of 1.2 inches.

Due to the different methods, select the best possible answer for each question

1. What percent of green beans measure over 6.1 inches?

2. What percent of green beans measure between 8.2 inches and 13.3 inches? (round to the nearest percent)

3. What length represents the 67th percentile?

4. What is the probability that a random sample of 20 green beans has a mean length greater than 6.7 inches?

Math   Statistics-And-Probability   
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