Unit 3 Vocabulry Review

6. The number of times a value appears in a data set.
7. A value that lies unusually far from the rest of the data.
10. The difference between the greatest and smallest values.
11. Any value dividing data into four equal parts.
14. A measure indicating the position of a value relative to the entire data set.
16. The middle value of an ordered data set.
17. The most frequently occurring data value.
18. A measure of spread equal to Q3 minus Q1.

1. A rule that states that approximately 68% of the data falls within one standard deviation of the mean, 95% within two standard deviations, and 99.7% within three standard deviations.
2. Refers to statistical measures that describe the center or typical value of a data set.
3. A bar graph showing frequencies within intervals.
4. A graph showing the median, quartiles, and possible outliers.
5. A summary including the minimum, Q1, median, Q3, and maximum.
8. The average of the squared distances from the mean.
9. The overall shape or pattern of how data are spread.
12. The average of all data values.
13. A measure of how far data typically deviate from the mean.
15. The degree to which a distribution leans to one side.