2. In a quality control study in a knitting mill, a manager examines 10 randomly chosen sweaters a day for six weeks. The number of defects he finds in each group of 10 summarized in this frequency table below: (Note: To know the number of sweaters inspected just add all the frequencies). No. of 0 1 2 3 4 5 6 7 8 9 10 defects Frequenc 12 7 4 1 2 1 2 0 1 0 0 y Find the range, variance, and standard deviation of the number of defects for this data. Submit output in a designated folder in the classroom on or before May 4, 2022.

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