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please explain step by step, I'm having a hard time getting this

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1.Sketch the area under the standard normal curve over the indicated interval and find the
specified area. (Round your answer to four decimal places.)
The area between
Z = 1.33 and z = 2.28 is
2. Let z be a random variable with a standard normal distribution. Find the indicated
probability. (Round your answer to four decimal places.)
PLz s -2.17)=
3. Let z be a random variable with a standard normal distribution. Find A(0 < z s 0.44), and
shade the corresponding area under the standard normal curve. (Use 4 decimal places.)

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