Data Analysis and Interpretation
Biology ⇒ Scientific Inquiry and Experimental Design in Biology
Data Analysis and Interpretation starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Data Analysis and Interpretation.
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See sample questions for grade 12
A biologist collects the following data on the number of seeds germinated: 8, 10, 9, 7, 6. Calculate the range of the data.
A data set contains the following values: 2, 4, 4, 4, 5, 7, 9. What is the mode?
A data set has a mean of 20 and a standard deviation of 0. What does this indicate about the data?
A researcher collects data on the number of bacteria colonies on different agar plates: 12, 15, 14, 13, 16. What is the mean number of colonies?
A scientist wants to determine if fertilizer affects plant growth. She measures the height of plants with and without fertilizer. What is the independent variable?
A student finds that the correlation coefficient (r) between two variables is 0.95. What does this indicate about the relationship between the variables?
A student measures the mass of 10 seeds and records the following values (in mg): 50, 52, 49, 51, 50, 53, 48, 52, 50, 51. What is the mode of the data?
A student records the heights (in cm) of 5 plants as 12, 15, 14, 13, and 16. What is the median height?
Describe one reason why outliers should be carefully considered when analyzing biological data.
Describe the purpose of using error bars in a graph representing biological data.
Describe what a null hypothesis is in the context of biological data analysis.
Describe what is meant by 'statistical significance' in the context of biological data analysis.
Explain the difference between accuracy and precision in the context of biological measurements.
Explain the difference between qualitative and quantitative data in biological research.
Explain why it is important to graph data in biological experiments.
Explain why it is important to use statistical tests when interpreting experimental data.
Explain why replication is important in biological experiments.
In a study, the average heart rate of a group of athletes is 70 bpm with a standard deviation of 5 bpm. What does the standard deviation indicate in this context?
