Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
27th March 2020
- 1Conditional Probability3 marks
27 students study Spanish and 9 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 beetle population of a woodland. State one assumption the method relies on.
- 3Bounds2 marks
A mass is 3.5 kg, correct to 1 decimal place. Write down the lower bound.
- 4Solving Quadratics3 marks
Solve x^2 - x - 2 = 0.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 16. Work out y when x = 15.
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