For the standard normal curve, find the z-score that corresponds to the 90th percentile.

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04-05-2018
Mathematics

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For the standard normal curve, find the z-score that corresponds to the 90th percentile.

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Mamasu Mamasu · Answer 1 · 2018-05-13T03:14:16+02:00

Mamasu Mamasu

13-05-2018

The 90th percentile refers to the value above 90 percent of the data. This is illustrated in the figure.

Using a z-table(also attached) or a technology, we can solve that z=1.28.

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