Why is a key (scale) always written on a pictograph?

Class 6Data HandlingData Handling

ATo tell how many units one symbol stands for
BTo make the graph look colourful
CTo name the person who drew it
DTo show the date

Step-by-Step Solution

The key states the value of one symbol, so the reader can multiply symbols by the scale to get the true count.

Answer: A) To tell how many units one symbol stands for

Key idea: Pictographs: pictures that count

A pictograph uses small pictures to represent counts. A key (or scale) tells you what one picture stands for — e.g. 1 ⚽ = 5 students. To find a category's count, multiply the number of pictures by the scale. A half-picture means half the scale (so 2½ ⚽ = 12.5, but in practice we round to a whole). Pictographs are friendly but imprecise — they're best for rough comparisons.

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Data Handling practice questions

More Class 6 Data Handling practice

Which of the following is the MOST suitable to compare quantities precisely using a…Assertion (A): The sum of all frequencies in a frequency table equals the total number…In a bar graph, what does the horizontal axis (x-axis) usually show?From the goals data (2, 0, 3, 1, 2, 4), what is the frequency of matches in which 2…Assertion (A): A pictograph gives less precise information than a bar graph. Reason (R):…