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Time Spent Online Americans spend an average of 5 hours per day online. If the standard deviation is 38 minutes, find the range in which
Time Spent Online Americans spend an average of 5 hours per day online. If the standard deviation is 38 minutes, find the range in which at least 88.89% of the data will lie. Use Chebyshev's Theorem. Round your k to the nearest whole number.
At least 88.89% of data will lie between _______ and _____ minutes.???????
Chebyshev's Theorem
For any numerical data set,
- at least3/4
- 3/4of the data lie within two standard deviations of the mean, that is, in the interval with endpointsx
- 2s
- x2sfor samples and with endpoints2
- 2for populations;
- at least8/9
- 8/9of the data lie within three standard deviations of the mean, that is, in the interval with endpointsx
- 3s
- x3sfor samples and with endpoints3
- 3for populations;
- at least11/k
- 2
- 11/k2of the data lie withink
- kstandard deviations of the mean, that is, in the interval with endpointsx
- ks
- xksfor samples and with endpointsk
- kfor populations, wherek
- kis any positive whole number that is greater than1
- 1.)
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