Observations in Class 90-100
The class 90–100 in the marks distribution of 100 students has frequency 4. Which are these 4 observations?
- 90, 91, 92, 93
- 90, 100, 90, 90 — Correct Answer
- 90, 95, 98, 100
- 100, 100, 100, 100
Explanation:
Correct Answer Explanation
The four observations in class 90–100 are: 90, 100, 90, 90.
Key Points:
- Class 90–100: Frequency = 4
- Observations: 90, 100, 90, 90 (three 90s and one 100)
- Class Mark = (90+100)/2 = 95
- In further calculations, all four values are treated as 95
- The actual maximum mark in the dataset is 100 (scored by one student)
📚 About this Topic — CH-3: Organisation of Data
This multiple choice question is from CH-3: Organisation of Data, NCERT Books, Statistics for Economics. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from CH-3: Organisation of Data to strengthen your preparation.
