Daily Practice

Higher

9th March 1988

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

1
Probability Trees3 marks
3 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 3, 7, 5, 8. Write down the cumulative frequency at the end of the third class.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.666... as a fraction in its simplest form.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 3^x is drawn. Work out y when x = 3, and write down where the curve crosses the y-axis.
5
Speed and Density2 marks
A block has volume 195 cm^3 and density 3 g/cm^3. Work out its mass.

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