Question
Denote symbolically random variable $X$ defined on sample space $U$.
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| Company | $A$ | $B$ | $C$ | $D$ | $E$ | $F$ |
| Advertisement Cost $($lakh $Rs.)$ | $140$ | $120$ | $80$ | $100$ | $80$ | $180$ |
| Sales of electric fans $($Crore $Rs.)$ | $35$ | $45$ | $15$ | $40$ | $20$ | $50$ |