In Order to Calculate the Standard Deviation,what Must You First

question 15

Multiple Choice

In order to calculate the standard deviation,what must you first compute?

• A)mean
• B)range
• C)median
• D)mode

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Definitions:

Percentiles

Statistical measures indicating the value below which a given percentage of observations in a group of observations falls.

Interquartile Range

A measure of variability, defined as the difference between the first and third quartiles, describing the middle 50% of a data set.

25th Percentile

A value below which 25% of the data falls.

75th Percentile

A value below which 75% of the data points in a dataset fall, used as a measure of dispersion.