Question: In a normal distribution, what proportion of cases fall between: a.) z=-1.00 and z=+1.00 b.) z=-2.00 and z=+2.00 c.) z=-1.25 and z=+.75 d.) z=+.75 and

In a normal distribution, what proportion of cases fall between:

a.) z=-1.00 and z=+1.00

b.) z=-2.00 and z=+2.00

c.) z=-1.25 and z=+.75

d.) z=+.75 and z=+1.25

e.) z=-1.30 and z=-.30?

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