Question

In: Statistics and Probability

A set of data has a normal distribution with a mean of 47 and a standard...

A set of data has a normal distribution with a mean of 47 and a standard deviation of 7. Find the percent of data within the following interval. less than 47

Solutions

Expert Solution

Solution :

Given that ,

mean = = 47

standard deviation = = 7

P(x < 47) = P[(x - ) / < (47 - 47) / 7]

= P(z < 0)

= 0.5

percent = 0.05%


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