Question 6 Not yet answered Points out of 1 P Flag question According to the Chebyshev rule, at least 75% of all observations in any data set are contained within a distance of how many standard deviations around the mean? Select one: Oa. 1 Ob. 2 Oc. 3 Question 7 Not yet answered Points out of 1 P Flag question A boxplot is a graphical representation of five number summary Select one: Oa. False Ob. The information is not sufficient Oc. True Flag