Daily Practice

Higher

29th September 1979

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

1
Probability Trees3 marks
5 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 11, lower quartile 19, median 21, upper quartile 28 and maximum 35. Work out the interquartile range.
3
The Product Rule for Counting2 marks
A meal deal has 6 mains, 5 sides and 3 drinks. How many different meals are possible?
4
Factorising Harder Quadratics3 marks
Factorise 4x^2 - 12x + 5.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 108. Work out y when x = 9.

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