Daily Practice

Higher

6th January 1968

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

1
Probability Trees3 marks
3 of 6 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 11, median 19, upper quartile 26 and maximum 34. Work out the interquartile range.
3
Bounds2 marks
A mass is 390 kg, correct to the nearest 10. Write down the lower bound.
4
Simultaneous Equations3 marks
5 teas and 4 cakes cost £15.50. 1 tea and 4 cakes cost £11.90. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 36. Work out y when x = 8.

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