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Dew5573 posted a question Jan 10, 2014 at 9:01pm

a) Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that Z is less than 1.15 is ________.


b) Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that Z is less than -2.20 is ________.


c) Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that Z is more than -0.98 is ________.


d) The probability that Z is between -2.33 and 2.33 is ________.


e) Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that Z is between -0.88 and 2.29 is ________.

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answered the question Jan 10, 2014 at 10:33pm
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a)

Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of
1. The probability that Z is less than 1.15 is 0.8749
From the z-table we can get this value.

b)...