While at her family reunion, Anaya surveys the people there and makes a list of everyone's ages. She wants to make a data display that shows the
youngest age, the mean age, and the oldest age, along with the way the other
ages are distributed. What kind of display is her best choice?
A. Histogram
B. Line graph
C. Ogive
D. Box-and-whisker plot

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.