CH 8 Vocabulary

4. a measure of variability; difference between the largest number and the smallest number.
6. a data value that is very different from the other values.
9. a diagram that shows the distribution of data values using the median, quartiles, minimum value, and maximum value on a number line.
12. (IQR) a measure of variability; represents the difference between the third quartile and the first quartile.
13. the absolute value of the difference between a value and the mean.
15. how the data values are arranged.
16. average; is the sum of all the values in a data set divided by the total number of data values in the set.

1. Mean, Median, and Mode
2. describes how the values in a data set vary with a single number.
3. (MAD) find the mean of all the differences.
5. values that divide a data set into four equal parts.
7. a measure of center; the middle data value when put in numerical order.
8. shows the number of times a value occurs in each category or interval.
10. a measure of center; the value that occurs most often.
11. a graph that uses bars to show the number of values in each category or interval.
14. anticipates that their will be a variety of answers.