Question

The following table shows the data collected from a random sample of 100 middle school students on the number of hours they play outdoor games every week: Weekly Duration of Outdoor Games Time (in hours) 0-2 3-5 6-8 9-11 Number of Students 30 62 8 0 There are 1,200 students in the school. Based on the sample proportion, how many students in the school would be expected to play outdoor games for at least three hours every week?

Answer 1

84o students would be expected to play outdoor games for at least three hours every week. 

The sample showed that 70% students played outdoor games for at least three hours every week. 70% of 1,200 is 840.