Arithmetic mean of a continuous frequency distribution

Find the arithmetic mean of the following frequency distribution:

The arithmetic mean of the following frequency distribution is 53. Find the value of k.

Calculate the arithmetic mean of the following frequency distribution by Direct Method: {:("Class Interval",10-20,20-40,40-70,70-120,120-200),("Frequency"," "4," "10," "26," "8," "2):}

Find the mean deviation about arithmetic mean of the following frequency distribution.Marks 0-10,10-20,20-30,30-40,40-50 No.of Students 5,8,15,16,6

Computation of mode for a continuous frequency distribution - Method

The arithmetic mean of the following frequency distibution is 25. Determine the value of p.

Find the mode of following continuous frequency distribution