2. Refer to the following grouped sample data. Interval 25-45 45 65 6.5-85 8.5-10.5 10.5-125 Frequency 1 8 4 5 3 a) Find
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2. Refer to the following grouped sample data. Interval 25-45 45 65 6.5-85 8.5-10.5 10.5-125 Frequency 1 8 4 5 3 a) Find
2. Refer to the following grouped sample data. Interval 25-45 45 65 6.5-85 8.5-10.5 10.5-125 Frequency 1 8 4 5 3 a) Find the mean of the sample data. Round to three decimal places. b) Find the median of the sample data. c) Find the standard deviation
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