# Question

Which one of the following is true? Why not the others?

a. Histograms are useful for visualizing correlations.

b. Pyramid charts are generally preferred to bar charts.

c. A correlation coefficient can be negative.

a. Histograms are useful for visualizing correlations.

b. Pyramid charts are generally preferred to bar charts.

c. A correlation coefficient can be negative.

## Answer to relevant Questions

Which data would be most suitable for a pie chart? Why not the others? a. Presidential vote in the last election by party (Democratic, Republican, Other). b. Retail prices of six major brands of color laser printers. c. ...Which is not a characteristic of using a log scale to display time series data? Explain. a. A log scale helps if we are comparing changes in two time series of dissimilar magnitude. b. General business audiences find it ...Which of the following is not a reason for sampling? Explain. a. The destructive nature of some tests. b. High cost of studying the entire population. c. The expense of obtaining random numbers. Given the following ANOVA table, find the F statistic and the critical value of F.05. Which statement is false? Explain. a. In the hypergeometric distribution, sampling is done without replacement. b. The mean of the uniform distribution is always (a + b) / 2. c. We use the geometric distribution to find ...Post your question

0