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Questions and Answers
Calculate the variance for Group A. Round to the nearest tenth.
Calculate the variance for Group A. Round to the nearest tenth.
Calculate the standard deviation for Group B. Round to the nearest tenth.
Calculate the standard deviation for Group B. Round to the nearest tenth.
Which group has the higher variance?
Which group has the higher variance?
Which group is more variable?
Which group is more variable?
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Can we determine significance based on the calculated variance and standard deviation in the provided data?
Can we determine significance based on the calculated variance and standard deviation in the provided data?
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Study Notes
Variance Practice Question
- Topic: Variance calculation and comparison of data sets
- Instruction: Calculate variance and standard deviation for Group A and Group B
- Data: Group A scores: 10, 40, 30, 15, 30; Group B scores: 10, 20, 15, 25, 30
- Question: Which group (A or B) is more variable? Can significance be determined?
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Description
Test your skills in calculating variance and standard deviation with this practical question. You'll compare the variability of two data sets, Group A and Group B, using their scores. Determine which group is more variable and assess if any significance can be determined.
