For a Variable Z That Has a Standard Normal Distribution

question 35

Essay

For a variable z that has a standard normal distribution,
a)What is the probability that z < −2.45?
b)What is the probability that z < +1.67?
c)What is the probability that z is between −1.43 and +1.43?
d)What value of z separates the smaller 10% of the standard normal distribution from the larger 90%?
e)What values of −z and +z separate the middle 95% of the standard normal distribution from the extreme 5%?

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