541.Calculate M.D. from the median for the following data:
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542.Find the mean deviation from the mean for the following data:
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543.Find the mean and variance of the following data: 25, 50, 48, 30, 70, 45, 33, 51, 31, 60
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544.The weights of a group of children, all 6 months old, are given below:
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545.Calculate the S.D. for the data:
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546.Find variance for the following data:
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547.From the data given below, state which group is more variable.
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548.Find the mean and variance for the following data by shortcut method:
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549.The mean and standard deviation of six observations are 8 and 4 respectively. If each obervation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.
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550.Calculate co-efficient of variation from the following data:
Long Answer Type
