The Cumulative Frequency Shows the Cumulative Number of Students with Scores

question 12

True/False

The cumulative frequency shows the cumulative number of students with scores up to and including those in the given range.

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Definitions:

Population Standard Deviation

A measure of the dispersion of all values in the entire population from the mean of the population.

Confidence Interval

A range of values that is believed to contain an unknown population parameter, calculated from a given set of sample data.

Sample Variance

A statistical measure of the dispersion of observations in a sample dataset around the sample mean.

T Distribution

A family of probability distributions that can be used to develop an interval estimate of a population mean whenever the population standard deviation s is unknown and is estimated by the sample standard deviation s.