Daily Practice · Higher

Daily Practice - Higher

8th November 1995

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Speed and Density2 marks
A block has volume 180 cm^3 and density 2.5 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-1, 2) and b is (-4, 1). Work out 3a - 5b as a column vector.
3
Probability Trees3 marks
5 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 9, 9, 12, 4. Write down the cumulative frequency at the end of the third class.
5
Fractional and Negative Indices3 marks
Work out 16^(3/2).

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