Class 9 Biology · Chapter 11 · Test 4
Median and Mode
25 MCQs • Practice the definitions, calculation steps, examples, and interpretation of median and mode strictly from the chapter.
25 questions · 20 min · 25 marks
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Sample questions
The first 5 of 25. Try each one, then tap to see the answer.
Question 1
How should data be arranged before calculating the median?
- AIn ascending or descending order
- BOnly randomly
- CAlphabetically
- DAccording to colour
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Answer: A
The chapter states that the data must be arranged in ascending or descending order.
Question 2
If the number of values in a data set is odd, what is the median?
- AThe middle value
- BThe average of all values
- CThe highest value
- DThe most frequent value
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Answer: A
For an odd number of values, the median is the middle value.
Question 3
If the number of values in a data set is even, how is the median calculated?
- ABy taking the average of the two middle values
- BBy selecting the highest value
- CBy selecting the lowest value
- DBy adding all values
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Answer: A
For an even number of values, the median is the average of the two middle values.
Question 4
What is the first step in calculating the median?
- AArrange the data in ascending order
- BAdd all the values
- CFind the most frequent value
- DDraw a bar chart
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Answer: A
The first listed step is to arrange the data in ascending order.
Question 5
What is the median position for an odd number of values according to the chapter?
- A(n + 1) ÷ 2
- Bn ÷ 2
- Cn + 1
- Dn × 2
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Answer: A
For an odd number of values, the median is at position (n + 1) ÷ 2.
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