Coral has conducted some research into student performance in assessments. In the assessment in question, 80% of students overall passed the assessment. Her data is shown in the table below. % who worked hard in class 60% % who both worked hard in class and passed the assessment 55% % who attended all classes 25% % who both attended all classes and passed the assessment 24% % who drank energy drinks in class 20% % who both drank energy drinks in class and passed the 16% assessment % who used Facebook in class 30% % who both used Facebook in class and passed the assessment 15% Which ONE of the following pairs of probabilities does Coral’s data suggest are independent probabilities? A Working hard and passing the assessment. B Attending all classes and passing the assessment. C Drinking energy drinks in class and passing the assessment. D Using Facebook in class and passing the assessment.
Coral has conducted some research into student performance in assessments. In the assessment in question, 80% of students overall passed the assessment. Her data is shown in the table below.
% who worked hard in class 60% % who both worked hard in class and passed the assessment 55% % who attended all classes 25% % who both attended all classes and passed the assessment 24% % who drank energy drinks in class 20% % who both drank energy drinks in class and passed the 16% assessment
% who used Facebook in class 30% % who both used Facebook in class and passed the assessment 15%
Which ONE of the following pairs of
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A Working hard and passing the assessment.
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B Attending all classes and passing the assessment.
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C Drinking energy drinks in class and passing the assessment.
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D Using Facebook in class and passing the assessment.
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