Daily Practice

Higher

19th February 1958

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Speed and Density2 marks
A block has volume 55 cm^3 and density 8 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-5, -3) and b is (-6, -3). Work out 3a - 4b as a column vector.
3
Probability Trees3 marks
4 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Cumulative Frequency2 marks
Four classes in order have frequencies 7, 8, 4, 3. Write down the cumulative frequency at the end of the third class.
5
Bounds2 marks
A mass is 35 kg, correct to the nearest whole number. Write down the lower bound.

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