Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

17th April 1999

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

1
Probability Trees3 marks
3 of 8 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 13, median 20, upper quartile 29 and maximum 34. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 3^-3 as a fraction.
4
Simultaneous Equations3 marks
3 teas and 1 cake cost £6.00. 4 teas and 4 cakes cost £14.80. 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 = 9.

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