Solve the equation ${{x}^{2}}+5x+6=0$

The following are scores obtained by some students in a test

8              18           10           14           18           11           13           14           13           17           15           8              16           13

Find the mean score

The following are scores obtained by some students in a test

8              18           10           14           18           11           13           14           13           17           15           8              16           13

Find the median score

The following are scores obtained by some students in a test

8              18           10           14           18           11           13           14           13           17           15           8              16           13

Find the mode of the distribution

The pie chart represents fruits on display in a grocery shop. If there are 60 oranges on display, how many apples are there?

A box contains 5 red, 6 green and 7 yellow pencils of the same size. What is the probability of picking a green pencil at random

In the diagram PQ is parallel to RX, $\angle QPS=105{}^\circ $ and $\angle FEG=50{}^\circ $ .

Find the value of n

In the diagram PQ is parallel to RX, $\angle QPS=105{}^\circ $ and $\angle FEG=50{}^\circ $ . Use the diagram to answer question 44

Find the value of m.

The fourth term of an Arithmetic progression (A.P) is 37 and the first term is −20. Find the common difference

Calculate the variance of 2, 4, 7, 8 and 9