Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

14th July 1999

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

1
Speed and Density2 marks
A block has volume 120 cm^3 and density 2.5 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-1, -3) and b is (1, -6). Work out 3a - 3b as a column vector.
3
Probability Trees3 marks
1 of 7 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 9, 5, 10, 4. 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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