The number of students passing through Zobel St. was observed and recorded every weekday afternoon since last year. The data set contains 285 observations. The sample mean is 725 and the standard deviation is 25.

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The number of students passing through Zobel St. was observed and recorded every weekday afternoon since last year. The data set contains 285 observations. The sample mean is 725 and the standard deviation is 25.

 

True or False: There is at least 242 afternoon last year when the students passing through Zobel street was between 675 and 775.

 

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