Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
28 students study Spanish and 11 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.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.2323... as a fraction in its simplest form.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 7x - 3, work out y when x = -3.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 9, y = 18. Work out y when x = 11.
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