One-variable Statistics

Front

A measure of variability helps determine the center of the data.

Back

False

Front

Interquartile Range or IQR is a measure of variability and helps determine the spread of the data.

Back

True

Front

If our data set is skewed to the right or left we would measure the center by calculating the...
Options: Mode, Mean, Median, Range

Back

Median

Front

The mean gets pulled away from the center of data or the typical value when the data is skewed to the right or left.

Back

True

Front

If we use the mean to measure the typical value or center of the data, we would use the _________ to measure the variability.

Back

Standard Deviation

Front

If we use the median to measure the typical value or center of the data, we would use the _________ to measure the variability.

Back

IQR or Interquartile Range

Front

The median is the...

Back

the middle value

Front

Does a histogram show each value in a data set?

Back

False

Front

A box plot divides the data into quarters or 25% increments.

Back

True

Front

The total number of data values in this histogram is...

Back

25