A data collection of the length of phone calls (in minutes) by a random sample of calls made by Stacey and Dianna is shown below. Which statement is true?
Stacey: 13, 22, 23, 24, 26, 27, 38, 39, 43, 44, 56, 57
Dianna: 13, 14, 26, 27, 28, 32, 34, 41, 42, 56, 57, 58
I - Stacey did not make any 13 minute phone calls ;
II - Stacey’s median call length is lower than Dianna’s median call length ;
III - The mean is less than the median in both groups.
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