ICSE Class 10 Maths Arithmetic Mean of Grouped Data
- I have a doubt in step deviation method , that how to calculate class size .Pls help me.
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How to find mean
- the mean of following numbers is 68.find the value of "x".45,52,60,x,69,70,26,81,and 94.Hence, estimate the median.
- find the mean of the following data: Marks: less than 0 less than 10 less than 20 less than 30 less than 40 less than 50 No. of students 0 7 19 32 42 50