Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
10 students study Spanish and 4 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 ladybird population of a garden. State one assumption the method relies on.
- 3The Product Rule for Counting2 marks
A meal deal has 6 mains, 5 sides and 2 drinks. How many different meals are possible?
- 4Quadratic Formula3 marks
Use the quadratic formula to solve 2x^2 + 4x - 1 = 0, to 2 decimal places.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 15. Work out y when x = 12.
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