Daily Practice · Higher

Daily Practice - Higher

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

6th April 2001

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

1
Probability Trees3 marks
4 of 10 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 ladybird population of a garden. State one assumption the method relies on.
3
Bounds2 marks
A mass is 9.6 kg, correct to 1 decimal place. Write down the upper bound.
4
Simultaneous Equations3 marks
2 teas and 3 cakes cost £12.10. 3 teas and 2 cakes cost £9.40. Find the price of a tea.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 15. Work out y when x = 15.

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