Daily Practice

Higher

27th November 1970

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

1
Probability Trees3 marks
3 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture2 marks
A capture-recapture estimate is made of the newt population of a stream. State one assumption the method relies on.
3
Bounds2 marks
A mass is 21.3 kg, correct to 1 decimal place. Write down the lower bound.
4
Simultaneous Equations3 marks
4 teas and 2 cakes cost £10.90. 2 teas and 4 cakes cost £10.40. Find the price of a tea.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 24. Work out y when x = 7.

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