A bar graph is a graph that presents data with rectangular bars with heights or lengths proportional to the values that they represent.  

We see that= 22 players.
Therefore,
 
equals 22 $\times$ 4 = 88 players as there are 4 such symbols given.

Raw data is data collected from one or many sources. It is data that has not been organised. It needs to be organised so that it can be used.

Tally marks are a quick way of keeping track of numbers in groups of five. One vertical line is made for each of the first four numbers, the fifth number is represented by a diagonal line across the previous four. 

The frequency of a particular data value is the number of times the data value occurs in a given data set.
Example :
Data: Apple, Orange, Grapes, Orange, Apple, Apple, Orange, Grapes, Apple, Apple
Frequency of apple in the given data : 5

We are given the below image.

 

Replacing each apple by 3 oranges, we get one bunch of grapes to be equal to 3 + 3 + 2 = 8 oranges.
$\therefore$ According to the given pictograph, one bunch of grapes is equal to 8 oranges.

A pie chart is a circular chart divided into wedge-like sectors, illustrating proportion. Each sector represents a proportionate part of the whole.

On observing the pie chart, we see that the largest sector or portion of the pie chart is covered by the activity 'Watching TV' (35%).

Therefore, watching TV is the most preferred leisure time activity.

We know that the below symbol stands for 5 units.

Thus, the below symbol represents 5 + 5 + 5 + 2 = 17.

Given that a pie chart shows that 80 % of the people like apple.

If a total of 30 people were surveyed,

then the number of people who like apple is given by
$80\%\text{of}30=\frac{80}{100}\times 30=8\times 3=24.$
Thus, 24 chose apple as their favourite fruit.