Fill in the blanks:
Mean deviation of a data is ……….. When measured from the median.

Fill in the blanks: Abbreviation NPK means ......... .

Fill in the blanks: ……is a means of prepetuation of the species

Fill in the blanks: The measure of complete angle is ....... .

Fill in the blanks Moment of inertia is measured in ................. .

Find the Standard Deviation of the following data :

Fill in the blanks with acute,obtuse,right or straight: When the sum of the measures of two angles is that of a straight angle,one of them should be ........ or ......... .

Fill in the blanks with acute,obtuse,right or straight: When the sum of the measures of two angles is that of a right angle,then each one of them is .......... .