Daily Practice · Higher

Daily Practice - Higher

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

6th February 2010

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

1
Probability Trees3 marks
3 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 11, lower quartile 21, median 29, upper quartile 33 and maximum 41. Work out the interquartile range.
3
The Product Rule for Counting2 marks
A meal deal has 5 mains, 5 sides and 5 drinks. How many different meals are possible?
4
Factorising Harder Quadratics3 marks
Factorise 20x^2 - 19x - 6.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 3.

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