One-Variable Statistics

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

• IQR

• Median

• Mean

• Standard Deviation

The median is the...

• average of all data values

• the most frequently occurring number

• the difference between the biggest and smallest value

• the middle value

The two measures of center we've study this unit are...

• Interquartile Range

• Mean Absolute Deviation

• Mean

• Median

• Standard Deviation

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

• True

• False

Choose the statistical question:

• What time did you wake up this morning?

• What time do 12th graders wake up each morning during the school week?

If our data set is skewed to the right or left we would measure the center by calculating the...

• Mode

• Mean

• Median

• Range

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

• True

• False

A typical value is found by using either the...

• MAD

• Mean

• Standard Deviation

• Median

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

• Mode

• MAD

• Standard Deviation

• IQR or Interquartile Range

A five number summary includes the minimum, maximum, median, ________ and ___________

• Pizza

• seltzer water

• quarter 1 or Q1

• quarter 3 or Q3