normal distributions

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cxwnvtbgburyy

Science

Description

On a standardized national exam, the mean score was 55.5 and the standard deviation was 6.2. What percentage of the students scored higher than 61.7?

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Explanation & Answer

Standard Deviation (SD) is the measure of spread of the numbers in a set of data from its mean value.

55.5+6.2=61.7

6.2/100 is the variance

50-6.2=43.8

=43.8%


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