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Statistics

Long Answer Type

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:

Solution not provided.
Ans. 21.5 ; 164.75

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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:

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