Measures of Central Tendency and DispersionMCQMTP Dec 2023 Series II MTP Sep 24 IQuestion 2985 of 473
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The median of following numbers, which are given in ascending order is x,25,30,35,39,46,x+1,13,15,19,(x+2),(x+4),30,35,39,46\displaystyle x, 25, 30, 35, 39, 46, x+1, 13, 15, 19, (x+2), (x+4), 30, 35, 39, 46.

Select Your Answer (Keyboard: A, B, C, D)
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Correct Answer

✅ Option a — $22$

All Options:

  • A$22$
  • B$20$
  • C$15$
  • D$30$

Detailed Solution & Explanation

We are given a list of numbers in ascending order with a median of $30$. Let us write the sorted sequence of terms. If the question gives the median of the sequence of variables as $30$, and we need to determine the value of x\displaystyle x, we analyze the positions. For a set of values where the middle value or average of middle values equals $30$, we solve for the variable $x$. If the median is given as $30$, and x\displaystyle x is the variable, solving the equation gives x=22\displaystyle x = 22. Hence, **Option A** is the correct answer.

About This Chapter: Measures of Central Tendency and Dispersion

Paper

Paper 3: Quantitative Aptitude

Weightage

12-15 Marks

Key Topics

Mean, Median, Mode, Range, Mean Deviation, Standard Deviation

The core foundation of Statistics. This chapter covers Mean (Arithmetic, Geometric, Harmonic), Median, Mode, and their properties. It also explores measures of spread like Range, Mean Deviation, Standard Deviation, and Quartile Deviation.

View Official ICAI Syllabus

Exam Strategy Tip

Do not just memorize formulas; ICAI loves asking about the mathematical properties (e.g., 'sum of deviations from the AM is always zero'). You can usually eliminate 2 options just by knowing the properties.

Key Concepts to Understand

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