Statistical Description of DataMTP June 22Question 2785 of 295
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The frequency of the Class 20−30\displaystyle 20-30 isMarks | 0−10\displaystyle 0-10 | 10−20\displaystyle 10-20 | 20−30\displaystyle 20-30 | 30−40\displaystyle 30-40 | 40−50\displaystyle 40-50---|---|---|---|---|---Freq | 5\displaystyle 5 | 13\displaystyle 13 | 28\displaystyle 28 | 34\displaystyle 34 | 38\displaystyle 38

Options

A5\displaystyle 5
B28\displaystyle 28
C15\displaystyle 15
D13\displaystyle 13
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Correct Answer

✅ Option b — 28\displaystyle 28

All Options:

  • A5\displaystyle 5
  • B28\displaystyle 28
  • C15\displaystyle 15
  • D13\displaystyle 13

Detailed Solution & Explanation

From the given frequency distribution table, we read the frequency directly corresponding to the class interval 20−30\displaystyle 20-30: - Class 0−10\displaystyle 0-10: frequency = 5\displaystyle 5 - Class 10−20\displaystyle 10-20: frequency = 13\displaystyle 13 - Class 20−30\displaystyle 20-30: frequency = 28\displaystyle 28 - Class 30−40\displaystyle 30-40: frequency = 34\displaystyle 34 - Class 40−50\displaystyle 40-50: frequency = 38\displaystyle 38 The frequency of the class 20−30\displaystyle 20-30 is 28\displaystyle 28, which corresponds to Option B. Hence, **Option B** is the correct answer.

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