Answer:
a) Mean is equal to the median, 72 inches
b) The Mean better represents this distribution.
Step-by-step explanation:
a) Finding the mean of the data
(66 + 68 + 70 +72 +74 + 76 + 78 )/ 7
=504/7 =72
The median is the center value
66,68 ,70 ,72 ,74 , 76 , 78
median is 72
Mean is equal to the median
b)
Mean better represents this distribution because this data is normally distributed.If plotted, a normal distribution curve is obtained with most of the values seen to cluster around the mean value.