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J & K CET Engineering J and K - CET Engineering Solved Paper-2015

  • question_answer
    Suppose, 70% of all voters in a city support ,a candidate A. If 40 voters in the city are randomly selected, then the expected number of voters that will support candidate A in this group, is

    A)  \[12\]     

    B)  \[20\]   

    C) \[28\]     

    D)  \[32\]

    Correct Answer: C

    Solution :

    Given, 70% of all voters in a city support a candidate A. Number of randomly selected voters in a city = 40 Then, expected number of voters that will support candidate \[A=40\times 70%\] \[=40\times \frac{70}{100}=28\]


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