Daily Practice

Higher

7th April 1962

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

1
Probability Trees3 marks
3 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 15, lower quartile 19, median 27, upper quartile 34 and maximum 36. Work out the interquartile range.
3
Standard Form2 marks
Work out (2 x 10^5) x (6 x 10^6). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 6x - 9.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 28. Work out y when x = 4.

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