Daily Practice · Higher

Daily Practice - Higher

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

9th November 2018

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

1
Conditional Probability3 marks
32 students study Spanish and 12 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 snail population of a hedgerow. State one assumption the method relies on.
3
Reverse Percentages3 marks
A bill is £384 including VAT at 20%. Work out the amount before VAT.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 4x - 6 = 0, to 2 decimal places.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 28. Work out y when x = 4.

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