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NORMAL PROBABILITY CURVE

Given a normal distribution,N=1,000;Mean=80 and SD=16.To find the percentage of individuals whose scores lie below the score point 40: The raw scores will be converted into z scores by using the formula-Z=X-M/σ; z=40-80/16=> -2.5σ Referring to table A,the σscore -2.5 gives the value 4938.This

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  Distribution, Score

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