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Chapter 2
Stats-Chapter 2
Question | Answer |
---|---|
MEAN | Sum of the data entries divided by the number of entries. (Average) |
MEDIAN | The middle data when the data set is sorted in ascending or descending order (Middle) |
MODE | The data entry that occurs with the greatest freq. (Most) |
OUTCIER | Data entry that is "far" removed the other entries in a data set. |
SYMMETRIC DISTRIBUTATION | When a vertical line is drawn thru the middle of the distribution, the two halves approx. "Mirror Image". |
UNIFORM DISTRIBUTATION | All entries in the distribution have equal freq. |
SKEWED LEFT DISTRIBUATION | Freq. dist. with a "tail" that extends to the left. |
SKEWED RIGHT DISTRIBUATION | Freq. dist. with a "tail" that extends to the right. |
FREQ. DIST. | Table that shows classes or intervals of data entries with the count of the number of entries in each class. |
CUMULATIVE FREQ. | Sum of freq. of that class and all freq. classes "running total" |
STEM & LEAF PLOT | Displays quantitative data. |
STEM | Data entry's left most digit(s) |
LEAF | Data entry's right most digit |
SCATTER PLOT GRAPH | Uses ordered pairs of quantitative variables on a coordinate plane |
PIE CHART | Circle graph that shows relationships of parts to a whole graph of data. |