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Twenty students were asked how many hours they worked per day. Work Hours Frequency Relative Frequency Cumulative Relative Frequenc)y a. (396) Complete table (fill in relative frequency and cumulative relative frequency columns) b. (396) Construct histogram 0.00 0.00 0.00 .00 0.00 0.00 10 4 4 7C. (396) Complete the box and whiskers plot B CD d. (396) Calculate the sample mean: x- e. (3%) What percentage of students worked three hours or less per day? (Enter only a number. Do not enter % sign.)

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