ProbabilityMTP June 24 Series IIIQuestion 2852 of 240
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Daily demand for calculators is having the following probability distribution:Demand | Probability1 | 0.102 | 0.153 | 0.204 | 0.255 | 0.186 | 0.12Determine the variance of the demand.

Options

A$2.54$
B$2.93$
C$2.22$
D$2.19$
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Correct Answer

✅ Option c — $2.22$

All Options:

  • A$2.54$
  • B$2.93$
  • C$2.22$
  • D$2.19$

About This Chapter: Probability

Paper

Paper 3: Quantitative Aptitude

Weightage

5-7 Marks

Key Topics

Probability Operations, Expected Value

A logic-heavy chapter dealing with random experiments, events (mutually exclusive, exhaustive), set theory probability, conditional probability, and Bayes' Theorem. It forms the basis for Theoretical Distributions.

View Official ICAI Syllabus

Exam Strategy Tip

Always draw a quick Venn Diagram or tree when faced with 'At least one' or 'Only A but not B' wording. It saves you from double-counting.

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