Daily Practice · Higher

Daily Practice - Higher

15th August 1992

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

1
Probability Trees3 marks
1 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 11, lower quartile 20, median 28, upper quartile 35 and maximum 42. Work out the interquartile range.
3
Standard Form2 marks
Work out (6 x 10^6) x (4 x 10^3). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 15x^2 + 13x - 20.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 112. Work out y when x = 8.

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