Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

30th August 2003

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
3 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Box Plots2 marks
A box plot has minimum 1, lower quartile 11, median 20, upper quartile 26 and maximum 29. Work out the interquartile range.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.4848... as a fraction in its simplest form.
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 22x + 15.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 64. Work out y when x = 7.

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