Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
31st August 2013
- 1Conditional Probability3 marks
13 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Box Plots2 marks
A box plot has minimum 11, lower quartile 20, median 27, upper quartile 35 and maximum 39. Work out the interquartile range.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.555... as a fraction in its simplest form.
- 4Solving Quadratics3 marks
Solve x^2 - x - 20 = 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 16. Work out y when x = 7.
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