Daily Practice

Higher

19th February 1955

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

1
Probability Trees3 marks
5 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 11, lower quartile 21, median 30, upper quartile 33 and maximum 43. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 64^(2/3).
4
Simultaneous Equations3 marks
2 teas and 2 cakes cost £4.50. 1 tea and 4 cakes cost £6.60. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 125. Work out y when x = 6.

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