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Often frequency distributions are reported using unequal class widths because the frequencies of some groups...

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Often frequency distributions are reported using unequal class widths because the frequencies of some groups would otherwise be small or very large Consider the following data which represent the daytime household temperature the thermostat is set to when someone is home for a random sample of 737 households Determine the class midpoint if necessary for each class and approximate the mean and standard deviation temperature Click the icon to view the frequency distribution for the daytime household temperature Class 61 64 65 67 68 69 70 71 72 73 76 77 90 Class Midpoint

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