Question

For each of the Z-scores below, determine two probabilities (show four three decimal places): (1) the...

For each of the Z-scores below, determine two probabilities (show four three decimal places): (1) the probability above the Z-score and (2) the probability below the Z-score (8 points)

2.40: Probability above: __________________________   

Probability below: __________________________

-0.48: Probability above: __________________________
  
Probability below: __________________________

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Answer #1

solution

(A)P(z >2.40 ) =1 - P(z <2.40 )

Using z table,
= 1 -0.9918

probability= 0.0082

(B)    P(z <-0.48) =0.3156

probability=0.3156

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