(1 Find the mean for given data with
direct method.
CI
0-2 2-4 4-6 6-8 8-10 10-12 12-14
frequgncy 1, 2 , 1, 5, 6, 2,3
Answers
Answered by
1
Answer:
2.85714285714
Step-by-step explanation:
1+2+1+5+6+2+3 = 20
20÷7 = 2.85714285714
Answered by
2
Answer:
7.7
Step-by-step explanation:
Class. Fi. Xi. Ui. fiui
0-2. 1. 1. -3. -3
2-4. 2. 3. -2. -4
4-6. 1. 5. -1. -1
6-8. 5. a= 7. 0. 0
8-10. 6. 9. 1. 6
10-12. 2. 11. 2. 4
12-14. 3 13. 3. 9
11
h ×fiui.+a = 2× 11. +7
fi. 20
22×7
20
154. =. 7.7
20
Hope it is right
Give thanks if you are right
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