Daily Practice

Higher

5th December 1976

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 = 9, y = 15. Work out y when x = 3.
2
Vectors3 marks
a is the column vector (6, 5) and b is (-3, -5). Work out 3a - 4b as a column vector.
3
Probability Trees3 marks
6 of 8 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 15 and a maximum of 58. Work out the range.
5
Bounds2 marks
A mass is 23.6 kg, correct to 1 decimal place. Write down the lower bound.

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