Class 9 Biology · Chapter 11 · Test 6
Chapter Mixed Board Test
25 MCQs • Complete Chapter 11 revision covering biostatistics, its uses and applications, mean, median, mode, and bar charts with board-pattern numerical questions.
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
Which use of biostatistics involves planning and structuring experiments so that collected data is relevant and sufficient?
- ADesigning experiments and studies
- BPredicting outcomes
- CPublic health and policy making
- DCalculating the mode
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Answer: A
Biostatistics helps plan and structure experiments to ensure the collected data is relevant and sufficient to answer research questions.
Question 2
What can analysis of biological data uncover?
- ATrends, correlations, and patterns
- BOnly the highest value
- COnly the lowest value
- DOnly the middle value
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Answer: A
The chapter states that statistical analysis can uncover trends, correlations, and patterns.
Question 3
What can biostatistics create to predict outcomes based on current data?
- AModels
- BFlowers
- CFertilizers
- DPollen grains
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Answer: A
The chapter states that biostatistics can be used to create models that predict outcomes based on current data.
Question 4
What can statistical analysis of COVID-19 rates help guide?
- AImplementation of COVID-19 vaccination campaigns
- BProduction of wheat
- CFormation of pollen grains
- DCalculation of median
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Answer: A
The chapter gives implementation of COVID-19 vaccination campaigns as an example of biostatistics informing public health policy.
Question 5
Which field uses biostatistics to study the distribution and determinants of health and diseases in populations?
- AEpidemiology
- BAgriculture
- CClinical trials
- DGenetics
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Answer: A
The chapter states that epidemiologists use biostatistics to study the distribution and determinants of health and diseases in populations.
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