Draw less than Ogive for the following frequency distribution. Find the median from obtained curve.

Write mid-values of the following frequency distribution.

The variance of the following continuous frequency distribution is

If the mean of the following frequency distribution is 7.2 find value of 'K'.

Find the median of the followiing distribution.

If the mean of the following frequency distribution is 50 , then find the value of k.

Write the mark wise frequencies in the following frequency distribution table.

Write the mark wise frequencies in the following frequency distribution table.

Ages of 60 teachers in primary schools of a Mandal are given in the following frequency distribution table. Construct the Frequency polygon and frequency curve for the data without using the histogram. (Use separate graph sheets)