point(s) possible Submit qu e following data represent the number of touchdown passes thrown by a particular quarterback during his firs asons. Verify that Chebyshev's Theorem holds true by determining the percent of observations that fall within one, two, and three standard deviations from the mean. 18 15 32 38 38 31 33 22 19 33 29 33 27 22 19 28 21 hat is the mean of the data set