The following table gives the marks obtained by a set of students in a certain examination. Calculate the average mark per student. Marks Number of students Marks Namber of stadents 10-30 60-70 12 20-30 2 70-80 16 30-40 3 80-90 10 40-50 5 90-100 4 50-60

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A: Find mode   

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Q: The data can be considered to be:

A: Here given grouped frequency distribution of speed 

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Q: The average percentage of failure in a certain examination is 40. What is the probability that out o...

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Q: Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are pres...

A: Median=? 

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