Daily Practice

Higher

7th December 1968

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

1
Probability Trees3 marks
2 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 10, lower quartile 14, median 24, upper quartile 32 and maximum 40. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 8^-2 as a fraction.
4
Simultaneous Equations3 marks
3 teas and 3 cakes cost £13.50. 1 tea and 4 cakes cost £11.10. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 324. Work out y when x = 4.

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