Daily Practice

Higher

20th November 1988

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

1
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 3, y = 10. Work out y when x = 5.
2
Vectors3 marks
a is the column vector (5, -4) and b is (5, -2). Work out 5a - 5b as a column vector.
3
Probability Trees3 marks
7 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has a minimum of 18 and a maximum of 47. Work out the range.
5
Standard Form2 marks
Work out (6 x 10^4) x (7 x 10^-5). Give your answer in standard form.

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