Daily Practice · Higher

Daily Practice - Higher

9th October 1993

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

1
Probability Trees3 marks
4 of 9 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 3, lower quartile 9, median 13, upper quartile 15 and maximum 17. Work out the interquartile range.
3
Standard Form3 marks
Work out (20 x 10^7) / (5 x 10^3). Give your answer in standard form.
4
Simultaneous Equations3 marks
5 teas and 2 cakes cost £9.80. 3 teas and 3 cakes cost £9.30. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 64. Work out y when x = 6.

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