6. Exploratory data analysis may be used to check for outliers in a data set. Sa

Question

6. Exploratory data analysis may be used to check for outliers in a data set. Sample statistics for variables in a data set should only be calculated for a case-control study 7. A standard normal distribution may be used to find critical values to construct a confidence interval for a mean. 8. For a variable with a bimodal distribution, it is not possible for the mean to be the same as the median. 9. 10. It is always important to check data for outliers 11. A five-number summary may be used to determine the shape of the distribution for a variable.

Explanation / Answer

Ans 6.

True

EDA is an approach to data analysis that uses a variety of techniques, largely visual, to: Maximize insight, reveal underlying structure, check for outliers, test assumptions, and determine optimal factors.

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