MCQ
यदि $\Sigma \mathrm{f}_{1}=20, \Sigma \mathrm{f}_{\mathrm{i}} \mathrm{x}_{1}=5 \mathrm{x}+25$ तथा वितरणका माध्य हो तो $\mathrm{x}$ का मान क्या होगा।
- A5
- B10
- ✓15
- D20
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