Daily Practice

Higher

24th January 1976

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

1
Probability Trees3 marks
2 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 15, lower quartile 25, median 27, upper quartile 36 and maximum 42. Work out the interquartile range.
3
Standard Form3 marks
Work out (63 x 10^10) / (9 x 10^2). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 4x^2 - 21x + 5.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 150. Work out y when x = 3.

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