Attempt of the following question:

The measurement (in mm) of the diameters of the head of the screws are given below:

Calculate mean diameter of head of a screw by ‘Assumed Mean Method’.

Attempt of the following question:

Solve the following quadratic equation by using formula method :
5m² + 5m – 1 = 0

Attempt of the following question:

There are three boys and two girls. A committee of two is to be formed.
Find the probability of the following events:
Event A : The committee contains at least one girl.
Event B : The committee contains one boy and one girl.

Attempt of the following question:

The marks scored by students in Mathematics in a certain Examination are given below:

Draw histogram for the above data.

Attempt of the following question:

Draw the frequency polygon for the following frequency distribution: