CBSE Class 11-science Answered
about statstics
Asked by gappus | 09 Jan, 2010, 12:10: PM
Expert Answer
|
x |
f |
Σfixi |
| 10 | 4 | 40 |
| 30 | 24 | 720 |
| 50 | 28 | 1400 |
| 70 | 16 | 1120 |
| 90 | 8 | 720 |
| Sum | 80 | 4000 |
Arithmetic Mean = Σfixi / Σfi = 4000/ 80 = 50
Answered by | 09 Jan, 2010, 02:54: PM
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