ICSE Class 10 Mathematics Question 12 of 21

Solved 2024 Specimen Paper ICSE Class 10 Mathematics — Question 8

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8
Question

Question 6(ii)

The table given below shows the ages of members of a society.

Age (in years)Number of members of society
25-3505
35-4532
45-5569
55-6580
65-7561
75-8513

(a) Draw a histogram representing the above distribution.

(b) Estimate the modal age of the members.

Answer

Steps of construction :

  1. Draw a histogram of the given distribution.

  2. Inside the highest rectangle, which represents the maximum frequency (or modal class), draw two lines AC and BD diagonally from the upper corners C and D of adjacent rectangles.

  3. Through the point K (the point of intersection of diagonals AC and BD), draw KL perpendicular to the horizontal axis.

  4. The value of point L on the horizontal axis represents the value of mode.

The table given below shows the ages of members of a society. ICSE 2024 Maths Specimen Solved Question Paper.

From graph,

L = 59 years

Hence, required mode = 59 years.