Daily Practice

Higher

16th May 1982

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
5 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 a minimum of 7 and a maximum of 58. Work out the range.
3
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Factorising Harder Quadratics3 marks
Factorise 12x^2 + 7x + 1.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 6, y = 10. Work out y when x = 5.

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