SECTION a ony ? For a positively skewed distribution, median is always less than the Pie chart is a graph of Geometric mean for the data \( 6,3,1,0,2 \) is The graph of Grouped frequency distribution is called If the mean is 5 and the mode is 5 of a symmetrical frequency distribution, then the median

The appropriate degrees of freedom for the distribution used in correlation is \( \mathrm{df}=\mathrm{N}-\mathrm{k} \). (A) True (B) False

What is the test statistic for correlation? (A) i (B) F (D) z (D)

What do correlations less than zero signify? A that the relationship between the variables is negative B correlation statistic can't have negative value (C) We need to square the correlations to get rid of the negative numbers (D) There is an error made

Correlation is a relatively quick way to test for causality as well as statistical significance. (A) True (B) False

(a) The percentage of infected people reaches a maximum after 11 days. (Simplify your answer.) (b) The maximum percent of the population infected is \( \square \% \). (Round to the nearest hundredth as needed.)