Daily Practice

Higher

27th December 1978

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

1
Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 12, 10, 7, 3. Write down the cumulative frequency at the end of the third class.
3
Fractional and Negative Indices3 marks
Work out 81^(3/2).
4
Trigonometric and Exponential Graphs2 marks
The curve y = 2^x is drawn. Work out y when x = 1, and write down where the curve crosses the y-axis.
5
Speed and Density2 marks
A block has volume 95 cm^3 and density 4 g/cm^3. Work out its mass.

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