Question

14.4 Which Measure of Center to Use?

Answer 1

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.