What I Can Do Answer the following. The frequency distribution of weights (in kg) of 40 persons is given below. Weights (in kg) Frequency 30 - 35 35 - 40 40 - 45 6 13 45 - 50 4 50-55 3 14 (a) What is the lower limit of fourth-class interval? (b) What is the class size of each class interval? (c) Which class interval has the highest frequency?

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