Daily Practice · Higher

Daily Practice - Higher

20th April 1996

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

1
Probability Trees3 marks
6 of 8 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 7, lower quartile 12, median 20, upper quartile 27 and maximum 36. Work out the interquartile range.
3
Standard Form3 marks
Work out (14 x 10^6) / (7 x 10^2). 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 = 3, y = 36. Work out y when x = 8.

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