A random sample of packets of cereals is collected to check whether the machine is working accurately. The goal is to have 500 g of cereal in each packet. Mean and variance obtained for the sample were 499 g and 9 g respectively. The point estimate of population standard deviation is_

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Q: The following data are taken from a study conducted by the National Park System on the temperatures…

A: Data given 142,156,168,174,181,178,179,179,174,178,163,167,153,145

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A: given data  n1 =258    x1 = 74p^1 = x1n1 = 74258 = 0.2868 n2 = 102    x2 = 63 p^2 = x2n2 = 63102 =…

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Q: Normal distribution is characterized by skewness of________?

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