Daily Practice

Higher

28th November 1979

5 questions · 11 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
2 of 5 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 10, 11, 4, 9. Write down the cumulative frequency at the end of the third class.
3
Surds2 marks
Write sqrt(20) in the form a sqrt(b), where b is as small as possible.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 5^x is drawn. Work out y when x = 2, and write down where the curve crosses the y-axis.
5
Speed and Density2 marks
A block has volume 115 cm^3 and density 3 g/cm^3. Work out its mass.

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