The table shows the ages (in years) of twenty children chosen at random from a community

What is the median of the distribution?

The table shows the ages (in years) of twenty children chosen at random from a community

What is the mean age?

If the probability of an event occurring is x, what is the probability of the event not occurring?

The table gives the distribution  of the marks of a number of students in a test

Find the mode of the distribution

In a $\Delta PQR,\text{ }\angle PQR=\angle PRQ={{45}^{\circ }}$ which of the following statement is correct?

I. $\triangle PQR$is an equilateral triangle

II. $\triangle PQR$ is an isosceles triangle

III. $\triangle PQR$ is a right angled triangle

In the diagram, O is the centre of the circle and $\angle PQR={{106}^{\circ }}$ .Find the value of y

In the diagram $\left| SP \right|=\left| SR \right|$ and $\angle PRS={{50}^{\circ }}$ Calculate $\angle PQR$

From the diagram, find the value of x

Each interior angle of a regular polygon is 162^o. How many sides has the polygon?

Find the value of x in the diagram