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Find the following probabilities. Draw a picture of the normal curve and shade the area :...

Find the following probabilities.

Draw a picture of the normal curve and shade the area :

1. P (z ≤ 1.31) =

2. P (z ≥ 1.65) =

3. P (−2.17 ≤ z ≤ 2.18) =

Math   Statistics-And-Probability   
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