Daily Practice
Foundation
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27th November 2024
- 1Comparing Data Sets
Data set X has a range of 12 and data set Y has a range of 5. Which data set is more consistent?
- 2Combined Mean
Three groups have 8 items with mean 10, 12 items with mean 15, and 5 items with mean 20. Find the combined mean.
- 3Designing Questionnaires and Surveys
What is wrong with the question 'Do you not think school lunches are too expensive?'
- 4Experimental Design
What is a control group used for?
- 5Median Quartiles and IQR
A data set has Q1 = 22 and Q3 = 35. State the interquartile range and explain what it measures.
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