Daily Practice - Higher
2nd September 1994
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 30. Work out y when x = 12.
- 2Vectors3 marks
a is the column vector (-2, 1) and b is (-1, 5). Work out 3a - 4b as a column vector.
- 3Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture2 marks
A capture-recapture estimate is made of the snail population of a hedgerow. State one assumption the method relies on.
- 5Standard Form2 marks
Work out (5 x 10^6) x (8 x 10^-3). Give your answer in standard form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1994, including the monthly compilation PDF.