Daily Practice

Higher

4th March 1989

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

1
Probability Trees3 marks
1 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 9, lower quartile 16, median 23, upper quartile 25 and maximum 29. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 6^-1 as a fraction.
4
Simultaneous Equations3 marks
2 teas and 4 cakes cost £11.40. 2 teas and 5 cakes cost £13.25. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 96. Work out y when x = 2.

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