Question

The ages of two exercise classes at a local fitness center are listed below. Which statement about the data is true?
Class A: 37, 36, 32, 41, 42, 36, 44, 45
Class B: 26, 40, 38, 36, 42, 40, 40, 36
a. The mean age is the same for both classes.
b. The range of ages is greater in Class A that in Class B.
c. The mode of the ages for both classes is 36.
d. The median age is the same for both groups.

Answer 1

put the numbers in order...
Class A -- 32, 36, 36, 37, 41,42, 44, 45
median is (37 + 41)/2 = 78/2 = 39
mode is 36
range is 45 - 32 = 13
mean is (32 + 36(2) + 37 + 41 + 42 + 44 + 45)/8 = 313/8 = 39.13

Class B --26, 36,36,38,40, 40, 40, 42
median is (38 + 40)/2 = 78/2 = 39
mode is 40
range is 42 - 26 = 16
mean is (26 + 36(2) + 38 + 40(3) + 42)/8 = 298.8 = 37.25

Its the median...they are both the same

Answer 2

thank you!(:

Answer 3

sure thing...sorry it took so long

Answer 4

its okay it helped me (: