Daily Practice · Higher
Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Conditional Probability3 marks
25 students study Spanish and 5 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 snail population of a hedgerow. State one assumption the method relies on.
- 3Fractional and Negative Indices2 marks
Write 2^-2 as a fraction.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 8x + 1, work out y when x = 2.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 18. Work out y when x = 2.
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