Name: _______________________ Date: _______ Period: _________
Interquartile Range & Mean Absolute Deviation Worksheet
MUST SHOW ALL WORK….May use calculator and notes.
1. For the data set below, find the median, the first and third quartiles, and interquartile
range. {texts per day: 24, 53, 38, 12, 31, 19, 26}
2. Find the measures of variation (like above) for the data set : 1, 1, 2, 3, 3, 5, 7, 9
3. The weights of several adult guinea pigs in a pet store are: 33, 39, 42, 33, 39, 31, 32 and 37
ounces. Find the mean absolute deviation. Describe what the mean absolute deviation tells you
about the data.
4. What is the mean absolute deviation of the following set?
{23, 24, 29, 30, 38, 48}
