Question

In: Statistics and Probability

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

Often, frequency distributions are reported using unequal class widths because the frequencies of some groups would otherwise be small or overlarge. Consider the following data, which represent the daytime household temperature the thermostat is set to when someone is home for a random sample of 736 households. Determine the class midpoint, if necessary, for each class and approximate the mean and standard deviation temperature.

Temperature Frequency

61-64 34

65-67 61

68-69 200

70 191

71-72 123

73-76 80

77-80 47

Class Class Midpoint

61-64 __

65-67 __

68-69 __

70 __

71-72 __

73-76 __

77-80 __

Expert Solution

orchestra answered 2 years ago

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