A service station manager sells gas at an average of ₹ 100 per hour on a rainy day, ₹ 150 per hour on a dubious day, ₹ 250 per hour on a fair day and ₹ 300 on a clear sky. If weather bureau statistics show the probabilities of weather as follows, then his mathematical expectation is

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Aicharya · Accepted Answer

Mathematical expectation $\begin{aligned} & =3.00(0.50)+250(0.30)+150(0.15) \ & =150+75+22.5+5 \ & =252.5 \end{aligned}$

A service station manager sells gas at an average of ₹ 100 per hour on a rainy day, ₹ 150 per hour on a…

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