BINGO is game of chance. The host has \(75\) balls numbered \(1\) through \(75\). Each player has a BINGO card with some numbers written on it. The participant cancels the number on the card when called out a number written on the ball selected at random. Whosoever cancels all the numbers on his/her card, says BINGO and wins the game.
The table given below, shows the data of one such game where 50 balls were used before Tara said 'BINGO'.
| Numbers announced | Number of times |
| \(0-15\) | 5 |
| \(15-30\) | 8 |
| \(30-45\) | 12 |
| \(45-60\) | 17 |
| \(60-75\) | 5 |
Based on the above information, answer the following:
(i) Write the median class.
(ii) When first ball was picked up, what was the probability of calling out an even number?
(iii) (a) Find the median of the given data.
[Note: Enter your answer upto two decimal places]
(or)
(b) Find the mode of the given data.
[Note: Enter your answer upto two decimal places]