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MHT CET202120 Sep 2021Morning ShiftMathematicsProbabilityActual

Rajesh has just bought a VCR from Maharashtra Electronics and the shop offers after sales service contract for Rs. 1000 for the next five years. Considering the experience of VCR users, the following distribution of maintenance expenses for the next five years is formed. The expected value of maintenance cost is

Options

  1. ARs. 800
  2. BRs. 770
  3. CRs. 700
  4. DRs. 900

Correct answer

B. Rs. 770

Step-by-step solution

aligned & Expected value = p _ i x _ i & =(0)(0.35)+(500)(0.25)+(1000)(0.15)+(1500)(0.1) & +(2000)(0.08)+(2500)(0.05)+(3000)(0.02) & =0+125+150+150+160+125+60=770 aligned

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