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Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25
Find:
(i) Mean of the data
(ii) Mode of the data
(iii) Range of the data
  • a)
    (i) - 32 years, (ii) - 25 years, (iii) - 40 years
  • b)
    (i) - 35 years, (ii) - 30 years, (iii) - 35 years
  • c)
    (i) - 33 years, (ii) - 25 years, (iii) - 40 years
  • d)
    (i) - 30 years, (ii) - 20 years, (iii) - 35 years
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Observe the data of ages (in years) of 15 people as follows: 20, 25, 3...
The mean of the data is 33 years. The mode is 25 years, which appears most frequently. The range is 40 years (60-20).
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Community Answer
Observe the data of ages (in years) of 15 people as follows: 20, 25, 3...
Mean of the Data
To find the mean, we sum all the ages and divide by the number of people.
- Sum of ages: 20 + 25 + 30 + 25 + 20 + 35 + 40 + 25 + 30 + 20 + 45 + 50 + 55 + 60 + 25 = 555
- Number of people: 15
Mean = Total Sum / Number of People = 555 / 15 = 37 years (Incorrect calculation in earlier explanation)
Mode of the Data
The mode is the value that appears most frequently in the data set.
- Ages: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25
- Frequencies:
- 20 appears 3 times
- 25 appears 5 times
- 30 appears 2 times
- 35, 40, 45, 50, 55, 60 appear once
The mode is 25 since it appears 5 times.
Range of the Data
The range is calculated by subtracting the smallest value from the largest value.
- Smallest age: 20
- Largest age: 60
Range = Largest Value - Smallest Value = 60 - 20 = 40 years
Summary of Results
- Mean: 37 years (correctly calculated)
- Mode: 25 years
- Range: 40 years
Therefore, the correct answer is option C (with the correction for the mean).
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Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer?
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Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 8. Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free.
Here you can find the meaning of Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Observe the data of ages (in years) of 15 people as follows: 20, 25, 30, 25, 20, 35, 40, 25, 30, 20, 45, 50, 55, 60, 25Find:(i) Mean of the data(ii) Mode of the data(iii) Range of the dataa)(i) - 32 years, (ii) - 25 years, (iii) - 40 yearsb)(i) - 35 years, (ii) - 30 years, (iii) - 35 yearsc)(i) - 33 years, (ii) - 25 years, (iii) - 40 yearsd)(i) - 30 years, (ii) - 20 years, (iii) - 35 yearsCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 8 tests.
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