Often, frequency distributions are reported using unequal class widths because the frequencies of some groups would otherwise be or very large. Consider the following data, which represent the daytime household temperature the thermostat is set to when someon home for a random sample of 752 households. Determine the class midpoint, if necessary, for each class and approximate the mean standard deviation temperature. Click the icon to view the frequency distribution for the daytime household temperature. Class Midpoint Class 61-64 65-67 68-69 70 71-72 73-76 77-80 (Round to one decimal place as needed.) The sample mean is F. Frequency distribution Temperature (°F) 61-64 65-67 68 69 70 71-72 73-76 77-80 Frequency o 35 60 199 195 125 85 53

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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 752 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
Class Midpoint
61-64
65-67
68-69
70
71-72
73 76
77-80
(Round to one decimal place as needed.)
The sample mean is°F.
(Round to one decimal place as needed.)
The sample standard deviation is F
(Round to one decimal place as needed.)
Frequency distribution
Temperature (F)
61-64
65 67
68 69
70
71-72
73-76
77-80
Print
Frequency o
35
60
199
195
125
85
53
Done
Maxt
Transcribed Image Text: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 752 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 Class Midpoint 61-64 65-67 68-69 70 71-72 73 76 77-80 (Round to one decimal place as needed.) The sample mean is°F. (Round to one decimal place as needed.) The sample standard deviation is F (Round to one decimal place as needed.) Frequency distribution Temperature (F) 61-64 65 67 68 69 70 71-72 73-76 77-80 Print Frequency o 35 60 199 195 125 85 53 Done Maxt
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