Daily Practice

Higher

7th April 1986

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

1
Conditional Probability3 marks
24 students study Spanish and 9 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 80 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Bounds2 marks
A mass is 280 kg, correct to the nearest 10. Write down the lower bound.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 2x^2 + 11x - 8 = 0, to 2 decimal places.
5
Repeated Percentage Change3 marks
A price rises by 15% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.

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