The average number of text messages sent or received in a day was 60, in a survey
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The average number of text messages sent or received in a day was 60, in a survey of n = 799 teen cell phone users conducted in June 2011
The correct notation for the mean.
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Statistics Unlocking The Power Of Data
ISBN: 9780470601877
1st Edition
Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
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