Multiple Choice

Arnie was trying to memorize a formula for his upcoming quiz in Statistics. “Score minus the mean, square it; next score minus the mean, square it; next score minus the mean, square it; do that for all the scores, add up all those squared differences, and divide the total by N, the sample size; then take the square root of the whole mess. Got it!” And indeed he does! Arnie has memorized the formula for computing:

A

the standard deviation.

B

the median.

C

an inferential statistic.

D

a correlation coefficient.

Master **Variability (Statistics)** with a bite sized video explanation from Lydia Flynn

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