Prelim: Quantitative Methods

Descriptive statistics summarize and organize data.

• True

• False

The mean is a measure of variability.

• True

• False

A histogram is a graphical representation of data.

• True

• False

The mode is the most frequently occurring value in a dataset.

• True

• False

The median is always equal to the mean in a dataset.

• True

• False

Standard deviation measures the spread of data around the mean.

• True

• False

Descriptive statistics allow us to make predictions about a population.

• True

• False

The range is the difference between the maximum and minimum values in a dataset.

• True

• False

A frequency distribution shows the number of occurrences of each data value.

• True

• False

Percentiles divide data into ten equal parts.

• True

• False