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Catracho Catracho
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Posts: 529
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5 years ago
Use the standard normal table to find the​ z-score that corresponds to the given percentile. If the area is not in the​ table, use the entry closest to the area. If the area is halfway between two​ entries, use the​ z-score halfway between the corresponding​ z-scores. If​ convenient, use technology to find the​ z-score.

Upper P 80
P80
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Valued Member
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5 years ago
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