Daily Practice · Higher

Daily Practice - Higher

20th May 1996

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

1
Conditional Probability3 marks
11 students study Spanish and 7 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
Bounds2 marks
A mass is 21.8 kg, correct to 1 decimal place. Write down the lower bound.
4
Quadratic Formula3 marks
Work out the discriminant of x^2 + 3x + 3 = 0 and say how many real solutions it has.
5
Repeated Percentage Change3 marks
A price rises by 25% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.

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