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  1. A

    How should I find mean of these distributions and hence compare them ? I know the formula of mean but I am not able to apply it here.

    ( summation of x1 till xn)/n is the formula of mean. 33 means that 33 people have salary $20,000.
  2. A

    How should I find mean of these distributions and hence compare them ? I know the formula of mean but I am not able to apply it here.