Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

28th November 2003

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
7 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture2 marks
A capture-recapture estimate is made of the ladybird population of a garden. State one assumption the method relies on.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.888... as a fraction in its simplest form.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 4x - 5, work out y when x = -4.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 21. Work out y when x = 9.

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