Nancy recorded the height (in centimetres) of her friends which gave the data 89, 77, 78, 95, and 89. She later added the heights of four more friends at 77, 78, 77, and 100. Which of the following statements is true? A
By adding the extra friends to the data set, the mode decreased, the median increased, and the mean decreased.
B
By adding the extra friends to the data set, the mode increased, the median decreased, and the mean increased.
C
By adding the extra friends to the data set, the mode increased, the median increased, and the mean increased.
D
By adding the extra friends to the data set, the mode decreased, the median decreased, and the mean decreased.