Daily Practice - Higher
2nd December 1993
- 1Conditional Probability3 marks
17 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Histograms2 marks
A histogram class is 10 units wide and contains 5 values. Work out the frequency density.
- 3Reverse Percentages3 marks
A bill is £240 including VAT at 20%. Work out the amount before VAT.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 2x - 7, work out y when x = -1.
- 5Repeated Percentage Change3 marks
A town's population is 16500 and grows by 5% each year. Work out the population after 3 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 December 1993, including the monthly compilation PDF.