SOLUTION: 1. What percentage of the area of the standard normal distribution is between z=-1.00 and z=+1.00? How do you know this? 2. Find the z-score for the standard normal distribution

Algebra ->  Probability-and-statistics -> SOLUTION: 1. What percentage of the area of the standard normal distribution is between z=-1.00 and z=+1.00? How do you know this? 2. Find the z-score for the standard normal distribution      Log On


   

Question 537506: 1. What percentage of the area of the standard normal distribution is between z=-1.00 and z=+1.00? How do you know this?
2. Find the z-score for the standard normal distribution where:
Area is about equal to 0.95 to the left of z.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
1. What percentage of the area of the standard normal distribution is between z=-1.00 and z=+1.00? How do you know this?
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P(-1 < z < 1) = normalcdf(-1,1) = 0.6827
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2. Find the z-score for the standard normal distribution where:
Area is about equal to 0.95 to the left of z.
invNorm(0.95) = 1.645
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Cheers,
Stan H.
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