Daily Practice
Higher
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13th March 1953
- 1Probability Trees3 marks
3 of 9 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 fish population of a pond. State one assumption the method relies on.
- 3Bounds2 marks
A mass is 24.4 kg, correct to 1 decimal place. Write down the upper bound.
- 4Factorising Harder Quadratics3 marks
Factorise 2x^2 - 13x + 15.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 12. Work out y when x = 4.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1953, including the monthly compilation PDF.