Daily Practice · Higher

Daily Practice - Higher

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

20th February 2021

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

1
Probability Trees3 marks
3 of 7 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 6, lower quartile 13, median 15, upper quartile 25 and maximum 35. Work out the interquartile range.
3
Bounds2 marks
A mass is 31 kg, correct to the nearest whole number. Write down the lower bound.
4
Factorising Harder Quadratics3 marks
Factorise 6x^2 + x - 2.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 12. Work out y when x = 7.

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