Convert the following cumulative frequency distribution into a simple frequency distribution

Convert the given frequency distribution into a continuouos grouped frequency distribution. In which intervals would 153.5 and 157.5 be included?

Convert the given frequency distribution into a continuouos grouped frequency distribution. In which intervals would 153.5 and 157.5 be included?

Consider the following frequency distribution : What is the above frequency distribution known as?

Construction of Cumulative frequency distribution

Find the mean from the following cumulative frequency distribution.

Find x and y from the following cumulative frequency distribution:

The mode for the following frequency distribution :