Daily Practice · Higher

Daily Practice - Higher

30th August 1996

5 questions · 14 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 moth population of a meadow. State one assumption the method relies on.
3
Standard Form3 marks
Work out (10 x 10^7) / (5 x 10^3). Give your answer in standard form.
4
Simultaneous Equations3 marks
3 teas and 3 cakes cost £11.70. 4 teas and 5 cakes cost £17.20. Find the price of a tea.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 30. Work out y when x = 11.

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