Daily Practice · Higher
Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
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17th June 2017
- 1Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Box Plots2 marks
A box plot has minimum 13, lower quartile 22, median 30, upper quartile 38 and maximum 43. Work out the interquartile range.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.111... as a fraction in its simplest form.
- 4Factorising Harder Quadratics3 marks
Factorise 15x^2 - 13x + 2.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 54. Work out y when x = 5.
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