Theoretical DistributionsPYQ Jan 26Question 4593 of 230
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If a binomial distribution has n=25\displaystyle n = 25 and p=0.2\displaystyle p = 0.2 what is its mean?

Options

A5
B4
C25
D2
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Correct Answer

Option a5

All Options:

  • A5
  • B4
  • C25
  • D2

Detailed Solution & Explanation

For a binomial distribution, the mean (or expected value) is given by the formula: Mean=np\text{Mean} = np where: - n\displaystyle n is the number of trials - p\displaystyle p is the probability of success
We are given: - n=25\displaystyle n = 25 - p=0.2\displaystyle p = 0.2
Substituting these values: Mean=25×0.2=5\text{Mean} = 25 \times 0.2 = 5 Hence, **Option A** is the correct answer.

About This Chapter: Theoretical Distributions

Paper

Paper 3: Quantitative Aptitude

Weightage

4-6 Marks

Key Topics

Binomial, Poisson, Normal Distribution

This chapter covers Binomial, Poisson, Normal Distribution and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 4-6 Marks weightage. Focus on understanding core concepts rather than memorizing.

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