In a pictograph, if a symbol represents 20 flowers in a basket then  stands for ________ flowers.

In a bar graph, bars of ________ width can be drawn horizontally or vertically with ________ spacing between them.

An observation occurring seven times in a data is represented as________ using tally marks.

On the scale of 1 unit length = 10 crore, the bar of length 6 units will represent ________ crore and of ______ units will represent 75crore.

In an examination, the grades achieved by 30 students of a class are given below. Arrange these grades in a table using tally marks:

B, C, C, E, A, C, B, B, D, D, D, D, B, C, C, C, A, C, B, E, A, D, C, B, E, C, B, E, C, D