Identify the continuous variables. Choose the correct answer from the options given below.

1.Number of tails obtained when a coin is tossed 100 times

2.Weight of students in a school

3.Marks obtained by students in an objective-type examination

4.Height of plants in an agricultural field

A1, 2 only

B3, 4 only

C1, 3 only

D2, 4 only ✓ Correct

Correct answer: (D) 2, 4 only

Explanation

Weight of students and height of plants are continuous variables, since they can take any value within a range.

Continuous variables are measured, and between any two values infinitely many intermediate values exist.

Number of tails in 100 tosses is a count, taking only whole numbers, so it is discrete.

Marks in an objective-type examination move in fixed steps and are counted, making them discrete.

Discrete variables arise from counting whereas continuous variables arise from measurement.

Height and weight measured on a ratio scale are classic textbook examples of continuous data.

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