Daily Practice · Higher

Daily Practice - Higher

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

20th June 1997

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
16 students study Spanish and 4 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
Bounds2 marks
A mass is 29.7 kg, correct to 1 decimal place. Write down the lower bound.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 5x + 7, work out y when x = 1.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 2, y = 8. Work out y when x = 11.

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