Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
28th June 2023
- 1Conditional Probability3 marks
15 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Cumulative Frequency2 marks
Four classes in order have frequencies 5, 4, 4, 7. Write down the cumulative frequency at the end of the third class.
- 3Bounds2 marks
A mass is 610 kg, correct to the nearest 10. Write down the lower bound.
- 4Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 2x - 7, work out y when x = -1.
- 5Speed and Density2 marks
A block has volume 15 cm^3 and density 2.5 g/cm^3. Work out its mass.
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