state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Mathematics Statistics Measures of Central Tendency
If the mean of a set of 10 observations x1, x2, ..., x10 is 30 then the mean of x1 + 5, x2 + 10, ..., x10 + 50 is:
1
27.5
2
57.5
3
53.5
4
59.5
5
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