Daily Practice

Higher

11th February 1991

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

1
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 228 values. What cumulative frequency do you read across from to estimate the lower quartile?
2
Bounds2 marks
A mass is 520 kg, correct to the nearest 10. Write down the lower bound.
3
Inequalities on Graphs2 marks
A region is defined by y < 2x + 6. Should the boundary line be solid or dashed, and why?
4
Repeated Percentage Change3 marks
A price rises by 10% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
5
Spheres and Cones3 marks
A cone has base radius 8 cm and vertical height 21 cm. Work out its volume, leaving your answer in terms of pi.

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