just 8 and 9 Consider the relative frequency histograms below. These are the rel

Question

just 8 and 9

Consider the relative frequency histograms below. These are the relative frequency histograms of two data sets which we will call A and B. Which is greater, the mean of the A data or the mean of the B data, and why? Which is greater, the standard deviation of the A data or the standard deviation of the B data, and why? What is the total area contained in the bars for the A relative frequency histogram? If the standard deviation of data set is zero, what can you say about the members of the population? A surveyer stood outside the DUC and asked exiting undergraduate students for the following information Their purpose for going to the DUC

Explanation / Answer

8.a) The distribution of A data i sright skewed and has higher spread. The mean will be higher in A data, compared to B data, which has lower spread compared to A data.

b) he data set A will have higher standard deviation because, the data is right skewed and the differenc ebetween minimum and maximum number is high.

c) Total area will be 1.

9. Since, there is no deviation from the mean, all data points will be same.

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