Daily Practice · Higher

Daily Practice - Higher

23rd July 1993

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
21 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 beetle population of a woodland. State one assumption the method relies on.
3
Reverse Percentages3 marks
A bill is £912 including VAT at 20%. Work out the amount before VAT.
4
Solving Quadratics3 marks
Solve x^2 + 14x + 45 = 0.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 42. Work out y when x = 9.

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