Question

In: Statistics and Probability

Let Z be a standard normal random variable. Calculate the following probabilities using the calculator provided....

Let

Z

be a standard normal random variable. Calculate the following probabilities using the calculator provided. Round your responses to at least three decimal places.

=PZ−1.63

=P>Z0.71

=P<−0.93<Z2.09

Solutions

Expert Solution

P(z < -1.63) = 0.0516                                   (From statistical table of z values)

P(z > 0.71) = 1 - P(z < 0.71)

                   = 0.7611                   (From statistical table of z values)

P(z > 0.71) = 0.7611

P(-0.93 < z < 2.09) = P(z < 2.09) - P(z < -0.93)

                               = 0.9817 - 0.1762                                    (From statistical table of z values)

                               = 0.8055

P(-0.93 < z < 2.09) = 0.8055


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