MHT CET Mathematics question
The mean and variance of the following data respectively are
| | 92 | 93 | 97 | 98 | 102 | 104 | 109 | |---|---|---|---|---|---|---|---| | | 3 | 2 | 3 | 2 | 6 | 3 | 3 |
Answer: (B)
Solution
, , so mean . f_ix_i^2$ =
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