The table shows the marks obtained by 40 candidates in an examination

Marks | 5-14 | 15-29 | 30-34 | 35-44 | 45-49 |

Frequency | 2 | 12 | 7 | 15 | x |

- Find the value of X
- Calculate the mean mark
- On the grid provided below draw a histogram to represent the data
- drawing a straight line on the graph above determine the median mark