Chapter 1, Problem T1.4SPT

To determine

To find: the following could be the median age.

Answer to Problem T1.4SPT

24 years

Explanation of Solution

Given:

  

Calculation:

Finding the frequency associating to each bar in the histogram

Age of home (yr)	Frequency	C.F.
5-10	7	7
10-15	8	15
15-20	9	24
20-25	7	31
25-30	6	37
30-35	3	40
35-40	4	44
40-45	2	46
45-50	1	47
50-55	1	48
55-60	0	48
60-65	3	51
65-70	0	51
70-75	1	52
total	52

The median is the mid value of the ascending sorted data set. It is containing 52 data values and therefore the median would be between the middle between the 26^th and 27^th data values. So

  $20\le \text{Median <25}$

The answer is 24; the reason is that it is between 20 and 25

Hence, the correct option is (c)