Daily Practice - Higher
1st March 1993
- 1Conditional Probability3 marks
18 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 40 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3Standard Form2 marks
Work out (2 x 10^7) x (2 x 10^-2). Give your answer in standard form.
- 4Solving Quadratics3 marks
Solve x^2 + 8x + 16 = 0.
- 5Repeated Percentage Change3 marks
A price rises by 15% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1993, including the monthly compilation PDF.