Daily Practice · Higher

Daily Practice - Higher

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

25th November 2000

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
2 of 5 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 13, lower quartile 16, median 22, upper quartile 31 and maximum 41. Work out the interquartile range.
3
Bounds2 marks
A mass is 330 kg, correct to the nearest 10. Write down the upper bound.
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 18x + 9.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 96. Work out y when x = 8.

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