Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

31st October 2022

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
23 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 224 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Reverse Percentages3 marks
A bill is £264 including VAT at 20%. Work out the amount before VAT.
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 5x - 8, work out y when x = -2.
5
Repeated Percentage Change3 marks
A price rises by 20% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.

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