Daily Practice - Higher
27th August 1992
- 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.
- 2Histograms2 marks
A histogram class is 4 units wide and contains 6 values. Work out the frequency density.
- 3Reverse Percentages3 marks
A bill is £240 including VAT at 20%. Work out the amount before VAT.
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 4^x is drawn. Work out y when x = 4, and write down where the curve crosses the y-axis.
- 5Repeated Percentage Change3 marks
A town's population is 12000 and grows by 5% each year. Work out the population after 6 years, to the nearest whole number.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1992, including the monthly compilation PDF.