Daily Practice

Higher

13th September 1974

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

1
Conditional Probability3 marks
22 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 snail population of a hedgerow. State one assumption the method relies on.
3
Bounds2 marks
A mass is 22 kg, correct to the nearest whole number. Write down the lower bound.
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 9x - 4 = 0, to 2 decimal places.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 48. Work out y when x = 2.

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