Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
16th August 2017
- 1Probability 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.
- 2Cumulative Frequency2 marks
Four classes in order have frequencies 5, 12, 9, 10. Write down the cumulative frequency at the end of the third class.
- 3Standard Form3 marks
Work out (18 x 10^11) / (2 x 10^4). Give your answer in standard form.
- 4Trigonometric 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.
- 5Speed and Density2 marks
A block has volume 185 cm^3 and density 8 g/cm^3. Work out its mass.
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