Daily Practice

Higher

23rd February 1960

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

1
Conditional Probability3 marks
19 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
45 fish are marked and released. Later 80 are caught, of which 8 are marked. Estimate the population.
3
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 5x - 4, work out y when x = -3.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 9. Write y in terms of x.

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