Daily Practice

Higher

18th April 1979

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

1
Speed and Density2 marks
A block has volume 80 cm^3 and density 11 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (3, 3) and b is (-2, 6). Work out 3a - 3b as a column vector.
3
Probability Trees3 marks
3 of 5 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 12, 12, 9, 10. Write down the cumulative frequency at the end of the third class.
5
Fractional and Negative Indices2 marks
Write 6^-1 as a fraction.

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