Find the mean of the following frequency distribution:

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

If the mean of the following distribution is 5. Find the value of f₁:

The mean of the following frequency distribution is 62.8 and the sum of all frequency is 50. Compute the missing frequency f₁ and f₂ :

The mean of the following frequency distribution is 57.6 and the sum of the frequencies is 50. Find the missing frequencies f₁ and f₂ :