Statistic problem

Statistic problem

Postby Guest » Wed Apr 03, 2019 8:44 pm

What is the area under the standard normal curve between z = -1.28 and z = 1.28? (4dp)

What is the z-value that gives the left hand tail area equal to 0.0102? (2dp)

What is the absolute value of z such that the total area under the standard normal curve between –z and +z will be 0.7924? (2dp)
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