Answer the following : Given below the frequency distribution of weekly wages of 400 workers. Find the range.

Answer the following : Given below the frequency distribution of marks obtained by 199 students. Compute arithmetic mean and S.D.

Answer the following questions: Define frequency.

Given below is the frequency distribution of daily wages (in Rs) of 130 workers. Find the median of the daily wages of workers.

Answer the following. : Define frequency of sound wave.

For the given frequency distribution find the median.

Find the median for the given frequency distribution.

Given below is the distribution of the daily income of workers. Find the mean of daily income of a worker.

The following table shows the frequency distribution of the time required for each worker to complete a work. From the table find the mean time required to complete the job for a worker.