Given a standardized normal distribution(with a mean of 0 and a standard deviation of1), complete parts(a) through(d) below.

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a. What is the probability that Z is between negative 1.52

1.52 and 1.83

1.83?

The probability that Z is between negative 1.52

1.52 and 1.83

1.83 is

0.9021

0.9021.

(Round to four decimal places asneeded.)

b. What is the probability that Z is less than negative 1.52

1.52 or greater than 1.83

1.83?

The probability that Z is less than negative 1.52

1.52 or greater than 1.83

1.83 is

0.0979

0.0979.

(Round to four decimal places asneeded.)

c. What is the value of Z if only 3.5

3.5% of all possible Z values arelarger?

The value of Z if only 3.5

3.5% of all possible Z values are larger is

1.81

1.81.

(Round to two decimal places asneeded.)

d. Between what two values of Z(symmetrically distributed around themean) will 97.86

97.86% of all possible Z values becontained?

The two values of Z for which 97.86

97.86% of all possible Z values are contained between are

negative 2.30

2.30 and

2.30

2.30.

(Use ascending order. Round to two decimal places asneeded.)

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