Question

The following distribution shows the number of runs scored by some batsmen in test matches :

The following table shows the marks scored by 23 students of a class. | Marks | 0 – 10 | 10 – 20 | 20 – 30 | 30 – 40 | 40 – 50 | |-------|--------|---------|---------|---------|----------| | Number of Students | 5 | 3 | 4 | 8 | 3 | The lower limit of the modal class is :

Find 'mean' and 'mode' of the following data :

The mean of the following distribution is