The marks obtained by 10 students in a class -test were as follows: 38,41,36,31,45,38,27,32,29,39 .Find the mean of their marks,when the marks of each students are increased by 2. ?
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mean=sum of observation divide by number of observation
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I hope you understand how to do but I will not tell you as you should try it yourself and I hope you understand it
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