Posted by **Anonymous** on Sunday, September 5, 2010 at 1:16pm.

these marks were obtained by class of 28 students in a science test. the maximum mark possible is 25.

20,17,21,15,16,15,12,14,15,19,21,17,20,22,16,19,21,13,22,15,14,18,20,13,18,16,15,19.

a.calculate the mode

b.what would you give as the pass mark? explain your answer

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