Daily Practice

Higher

23rd November 1981

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

1
Conditional Probability3 marks
23 students study Spanish and 11 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 140 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Surds2 marks
Write sqrt(45) in the form a sqrt(b), where b is as small as possible.
4
Inequalities on Graphs3 marks
Does the point (-1, -5) satisfy y > -x + 1?
5
Repeated Percentage Change3 marks
A price rises by 25% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.

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