English

The mean of x − 2, x, x + 2, x + 4 is ______.

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Question

The mean of x − 2, x, x + 2, x + 4 is ______.

Options

  • x + 1

  • x

  • 4x + 4

  • x + 2

MCQ
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Solution

The mean of x − 2, x, x + 2, x + 4 is x + 1.

Explanation:

The mean is calculated by dividing the sum of all terms by the total number of terms, which is 4. Summing the terms gives (x − 2) + x + (x + 2) + (x + 4) = 4x + 4, and dividing this sum by 4 results in x + 1.

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Chapter 18: Mean and Median [For Ungrouped Data Only] - Exercise 18 (A) [Page 264]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 18 Mean and Median [For Ungrouped Data Only]
Exercise 18 (A) | Q 1. (a) | Page 264
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