Daily Practice

Higher

11th June 1985

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
9 students study Spanish and 5 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture3 marks
15 fish are marked and released. Later 63 are caught, of which 9 are marked. Estimate the population.
3
The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Inequalities on Graphs3 marks
Does the point (-4, 19) satisfy y > -4x - 5?
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 3. Write y in terms of x.

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