SOLUTION: Determine the following percentages for a z score of 0.90 (Round your answers to 2 decimal places
a. The percentage of scores fall below this z score.
b. The percentage of scores
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Question 1162941: Determine the following percentages for a z score of 0.90 (Round your answers to 2 decimal places
a. The percentage of scores fall below this z score.
b. The percentage of scores fall between the mean and this z score.
c. The percentage of scores above this z score
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
the z-score is .90.
based on the following z-score table, you get the following.
https://www.math.arizona.edu/~rsims/ma464/standardnormaltable.pdf
area to the left of a z-score of .9 is equal to .81594
that's the proportion of scores that fall below that z-score.
the percentage would be 81.594%.
since 50% of the area under the normal distribution curve is below the mean, the percentage of scores between the mean and the z-score of.9 would be .81594 minus .5 = .31594.
the percentage of scores above that z-score would be 100% minus 81.594% = 18.406%.
visually, this looks like this:
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