Question: help on how to solve & break down the following Given a standard normal distribution (SND) with = 60 and a = 5, what is

help on how to solve & break down the following

Given a standard normal distribution (SND) with = 60 and a = 5, what is the area under the curve between X1 = 67and X2 = 57?

Given a standard normal distribution (SND) with = 70 and a = 10, what is the area under the curve between X1 = 78 and X2 = 62?

Given a standard normal distribution (SND) with = 80 and a = 5, what is the area under the curve between Z1 = -1.2 and Z2 = -1.8?

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