Daily Practice

Higher

22nd December 1979

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

1
Probability Trees3 marks
4 of 7 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 6, lower quartile 10, median 12, upper quartile 14 and maximum 17. Work out the interquartile range.
3
Standard Form2 marks
Work out (4 x 10^3) x (4 x 10^-2). Give your answer in standard form.
4
Simultaneous Equations3 marks
5 teas and 3 cakes cost £20.70. 3 teas and 2 cakes cost £13.00. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 20. Work out y when x = 9.

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