defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Statistics Correlation and Regression

यदि x̅ = 25, y̅ = 120, bxy = 2 हो तो y = 130 होने पर x का मान ज्ञात कीजिए

1
20
2
25
3
45
4
60
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