CA Foundation · Quantitative Aptitude · Statistical Description of Data
Which of the following variables is a discrete quantitative variable?
The number of defective bulbs in a box of 100 is a discrete quantitative variable because it is obtained by counting and can take only whole-number values. Weight, time and height are measured and can take any value in an interval, so they are continuous.
- ANumber of defective bulbs in a box of 100Correct
- BWeight of a sack of wheat in kg
- CTime taken by a clerk to process a file
- DHeight of employees in a firm
Explanation
The count of defective bulbs takes only whole-number values such as 0, 1, 2, so it is discrete. Weight, time and height can take any value within a range, including fractions, so they are continuous. Measured quantities are the usual trap for continuous variables.
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