AIR MATH

Math Question

12 If the mean of a standardized test with a normal distribution is \( 54.3 \) and the standard deviation is 4.6, what is the best approximation of the percent of the scores that fall within two standard deviations above the mean? (A) \( 68 \% \) (B) \( 95 \% \) (C) \( 47.5 \% \) D \( 34 \% \)

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