Daily Practice - Higher
26th November 1993
- 1Probability Trees3 marks
1 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.9292... as a fraction in its simplest form.
- 4Simultaneous Equations3 marks
4 teas and 3 cakes cost £13.80. 4 teas and 4 cakes cost £16.80. Find the price of a tea.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 20. Work out y when x = 14.
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