Observe the data and answer the questions that follow:
16, 15, 16, 16, 8, 15, 17
(a) Which data value can be put in the data so that the mode remains
the same?
(b) At least how many and which value(s) must be put in to change
the mode to 15?
(c) What is the least number of data values that must be put in to
change the mode to 17? Name them.