Daily Practice

Higher

25th July 1987

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

1
Probability Trees3 marks
2 of 6 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 8, lower quartile 17, median 19, upper quartile 28 and maximum 31. Work out the interquartile range.
3
Standard Form2 marks
Work out (8 x 10^3) x (7 x 10^-5). Give your answer in standard form.
4
Equation of a Line3 marks
A line has gradient 3 and passes through (4, 21). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 112. Work out y when x = 5.

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