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Complete the two-way frequency table below, which shows the relationship between students who participate in band and drama in a particular high school. From a sample of 50 students, it is found that 17 are in band, 10 are in drama, and 6 participate in both.

                            Band       Not in Band       Total
  Drama                6                    4                  10
Not in Drama       11                  29                40
   Total                 17                  33                 50

                             

Part A: How many students are not in band or drama?

 

Part B: How many students in this sample are in drama but not in band?

 

Part C: If there are 250 students in the entire school, how many students can the band instructor expect to participate in the first band practice of the year?

 Apr 2, 2016
edited by Guest  Apr 2, 2016
edited by Guest  Apr 2, 2016
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Part A   = 29

 

Part B  = 4

 

Part C   =     17 out of 50 were in the band.......this is 34%........and applying this percentage to 250  =  250 * .34  = 85 students expected to participate in the first practice

 

 

 

cool cool cool

 Apr 2, 2016

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