Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
8th September 2000
- 1Conditional Probability3 marks
20 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
- 3Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
- 4Inequalities on Graphs3 marks
Does the point (-2, 4) satisfy y > -4x - 1?
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 32. Work out y when x = 5.
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