CA Foundation · Quantitative Aptitude · Statistical Description of Data
Which of the following is an example of a discrete variable?
The number of defective bulbs in a box is a discrete variable because it is a count that takes only whole-number values. Weight, time and height can take any value within a range, so they are continuous variables.
- AWeight of a bag of rice at a Kolkata wholesaler
- BNumber of defective bulbs in a box of 100 produced by a Pune firmCorrect
- CTime taken by a customer to complete a bank transaction
- DHeight of employees in a Chennai office
Explanation
A discrete variable takes only isolated values, usually counts. The number of defective bulbs can be 0, 1, 2 and so on, but never a fraction. Weight, time and height can take any value in a range, so they are continuous variables.
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