Question 1000662: Given that z is a standard normal random variable, compute the following probabilities.
a. P(z≤ -1).
b. P(z≥ -1).
c. P(z≥ -1.5).
d. P(-3≤z≤0).
*Note: i don't know if the answer i got match, but i will appreciate you show work. Thank you. Here are what i got:
b. answ= 0.8413
c. answer=0.9332
d. answer= 0.9938
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Given that z is a standard normal random variable, compute the following probabilities.
a. P(z≤ -1) = normalcdf(-100,-1) = 0.1587
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b. P(z≥ -1) = = 1 - 0.1587 = 0.8413
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c. P(z≥ -1.5) = normalcdf(-1.5,100) = 0.9332
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d. P(-3≤z≤0) = normalcdf(-3,0) = 0.4987
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Cheers,
Stan H.
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