7. Average age of the people of a country is shown in the following table:
(Ans. Average Marks = 23.2)
10-20
20-30
Age (Years)
People ('000)
30-40
30
40-50
50-60
32
15
12
9
Find out mean age by Direct Method.
Answers
Answered by
1
Answer:
Average age of the people of a counry is shown in the following table: <br>
<br> Find out mean age by Direct Method
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6
Step by step explaination :
Age. People(f/). (x) (L1+L2/2). fx
10-20. 30. 15. 450
20-30. 32. 25. 800
30-40. 15. 35. 525
40-50. 12. 45. 540
50-60. 09. 55. 495
= 98. = 2810
Direct method = £Fx/x
= 2810 / 98
= 28.7
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