1. Compute the median age and modal age of the respondents based on the following
frequency distribution.
Age last birthday 15-19 20-24 25-29 30-34 35-39 39-44
Numbe
20 39 24 10
4.
9
Answers
Answer:
Step-by-step explanation:
Given : Age (in yrs) 15-19 20-24 25-29 30-34 35-39 40-44 45-49
Frequency 3 12 21 15 5 4 2 3
To find : mean age in years
Solution:
Class Mean Class Freq f A = (mean -32)/5 A *f
15 - 19 17 3 -3 -9
20 - 24 22 12 -2 -24
25 - 29 27 21 -1 -21
30 - 34 32 15 0 0
35 - 39 37 5 1 5
40 - 44 42 4 2 8
45 - 49 47 2 3 6
Total 62 -35
Mean = 32 + 5 * (-35)/62
= 32 - 2.82
= 29.18
mean age in years = 29.18
Learn More:
Calculate the median for the following data: Age (in years) 19-25 26 ...
brainly.in/question/13388354
The average ages in years) of persons in groups A, B and C are ...
brainly.in/question/13429018
iven : Age (in yrs) 15-19 20-24 25-29 30-34 35-39 40-44 45-49
Frequency 3 12 21 15 5 4 2 3
To find : mean age in years
Solution:
Class Mean Class Freq f A = (mean -32)/5 A *f
15 - 19 17 3 -3 -9
20 - 24 22 12 -2 -24
25 - 29 27 21 -1 -21
30 - 34 32 15 0 0
35 - 39 37 5 1 5
40 - 44 42 4 2 8
45 - 49 47 2 3 6
Total 62 -35
Mean = 32 + 5 * (-35)/62
= 32 - 2.82
= 29.18
mean age in years = 29.18