Daily Practice - Higher
31st January 1994
- 1Conditional Probability3 marks
30 students study Spanish and 12 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 56 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.5454... as a fraction in its simplest form.
- 4Solving Quadratics3 marks
Solve x^2 + x - 30 = 0.
- 5Repeated Percentage Change3 marks
A price rises by 20% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.
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