The two branches of statistics are _____ a. descriptive and inferential b. and m
ID: 3293538 • Letter: T
Question
The two branches of statistics are _____ a. descriptive and inferential b. and multivariate c. categorical and numerical d. none of the above. A histogram is positively skewed if _____ a. it is multimodal with positive peak. b. the right or upper tail of a unimodal histogram is stretched out compared with the left tail. c. the left or lower tail of a unimodal histogram is stretched out compared with the right tail. d. is it symmetrical about the positive axis. Frequency distribution _____ a. provides an effective tabular summary of the data. b. is possible only when the data is categorical. c. is a tabulation of the frequencies and/or relative frequencies. d. all of the above. e. none of the above. The sample mean and sample median sensitivity to outliers are characterized as _____ a. both are very sensitive to outliers. b. only the median is very sensitive to outliers. c. only the mean is very sensitive to outliers. d. neither is affected by outliers. The sample variance is _____ a. based on the average deviations. b. based on the sum of the squared deviations. c. based on the total deviations. d. all of the above. e. none of the above. In the study of probability, an event is _____ a. any collection of outcomes contained in the sample space. b. simple if it consists of exactly one outcome. c compound if it consists of more than one outcome. d. all of the above. e. none of the above. The union of two events A and B, is _____ a. the set of all outcomes in A and the complement of B. b. the event consisting of all outcomes that are in at least one of the two events, and reads as A or B. c. the event consisting of all outcomes that are in both events, and reads as A and B. d. all of the above. e. none of the above.Explanation / Answer
1:
The two branches of statistics are descriptive and inferential.
Answer a
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Answer b
3:
Answer c
4:
Answer c
5:
Answer b
6;
Answer d
7:
Answer b
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