Daily Practice · Higher

Daily Practice - Higher

17th June 1995

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

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 108. Work out y when x = 5.
2
Vectors3 marks
a is the column vector (3, 1) and b is (0, 4). Work out 4a - 2b as a column vector.
3
Probability Trees3 marks
2 of 5 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 minimum 15, lower quartile 20, median 26, upper quartile 35 and maximum 41. Work out the interquartile range.
5
Standard Form3 marks
Work out (27 x 10^6) / (9 x 10^4). Give your answer in standard form.

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