Daily Practice

Higher

20th January 1979

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

1
Probability Trees3 marks
1 of 5 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 5, lower quartile 11, median 17, upper quartile 23 and maximum 28. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 8^-3 as a fraction.
4
Simultaneous Equations3 marks
2 teas and 2 cakes cost £9.00. 1 tea and 3 cakes cost £8.90. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 252. Work out y when x = 7.

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