Here are the numbers of calls received during 20 randomly chosen, 15-minute time intervals at a customer support service. 1, 3, 7, 7, 8, 9, 11, 11, 11, 12, 13, 13, 14, 14, 16, 17, 18, 19, 21, 24 Send data to calculator Send data to Excel Frequency 8 - 4 2 2 0 10 15 20 25 Number of calls Mean (a) For these data, which measures of Median central tendency take more than one value? Choose all that apply. Mode None of these measures (b) Suppose that the measurement 24 (the Mear largest measurement in the data set) were Median replaced by 44. Which measures of central tendency would be affected by the change? Mode Choose all that apply. None of these measures (c) Suppose that, starting with the original Mean data set, the largest measurement were Median removed. Which measures of central tendency would be changed from those of Mode the original data set? Choose all that apply. None of these measures (d) Which of the following best describes the ONegatively skewed distribution of the original data? Choose only OPositively skewed one. Roughly symmetrical X