What is the frequency of 7 in the following data? `0, 4 ,5 ,6 ,7 ,3 ,4 ,7 ,7 ,5 ,6 ,7 ,3 ,2 ,7 ,7`

Find the modes of the following data. 5, 7, 4, 5, 6, 2, 5, 2, 4, 7, 5

Median of the following numbers : 4, 4, 5, 7, 6, 7, 7, 12, 3 is

Make a frequency distribution of the following series 1,1, 2, 3, 3, 3, 3, 3,3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6,6, 6, 6, 6, 7, 7,7,8,8.

The median of the data : 3, 4, 5, 6, 7, 3, 4 is

Find the median of the following data:7,9,4,11,4,6,8,3,4,9,4,7,2,7,2

Find cov (x, y) for the following data : {:(x,3,4,5,6,7),(y,8,7,6,5,4):}

Median of the following numbers 4,4,5,7,6,7,7,12,3 is

Median of the following numbers 4,4,5,7,6,7,7,12,3 is