Higher
4th November 1988
- 1Probability Trees3 marks
7 of 10 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 0.7272... as a fraction in its simplest form.
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 4^x is drawn. Work out y when x = 3, and write down where the curve crosses the y-axis.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 54. Work out y when x = 2.
You are looking at an earlier sheet. Today's sheet is the one that adds a day.
Your run is kept in this browser only, and there is no account.
Recent Higher sheets
Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1988, including the monthly compilation PDF.