The data 10, 15, 20, 25, 30, which of the following will not change if 20 was replaced by a 26? ed out of Select one: O a. The mode question O b. The median O c. The mean O d. The rang en 8 Which of the following measures of central tendency will always change if a single value in the data changes? ed I out of Select one: O a. Mean question O b. Mode O c. Median O d. All of these