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Ridge Counts on Fingerprints Are Approximately Normally Distributed, with a Mean

Question 50

Multiple Choice

Ridge counts on fingerprints are approximately normally distributed, with a mean of about 140 and a standard deviation of 50. Which of the following intervals will contain 47.5% of the population?


A) 140 ± 50 ridges
B) 90 ± 100 ridges
C) 140 ± 100 ridges
D) 190 ± 50 ridges

Correct Answer:

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