[" The mean and the variance of the tero...

[" The mean and the variance of the tero "10" observations "],[" are given to "4" and "2" .& every obsomations is multiplied "],[" - by "2" then find the mew mean and the variance of the "],[" new servies."]

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[" The mean and the variance of the tero "10" observations "],[" are given to "4" and "2" .& every obsomations is multiplied "],[" - by "2" then find the mew mean and the variance of the "],[" new servies."]

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