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Mathematics, 22.07.2021 17:20 whrjegt4jrnfdvj

Question: (a) With examples, distinguish between measures of dispersion and measures of position (b) The mean and standard deviation of 40 observations of scores of mathematics are found to be 20 and 4 respectively. On rechecking, it was found that an observation 8 was incorrect. Calculate the correct mean and standard deviation in each of the following cases: i. ii. If the wrong score is omitted. If it is replaced by 12.

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