Daily Practice

Higher

1st January 1954

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

1
Conditional Probability3 marks
13 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Capture Recapture2 marks
A capture-recapture estimate is made of the snail population of a hedgerow. State one assumption the method relies on.
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
Solving Quadratics3 marks
Solve x^2 - 3x - 40 = 0.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 2, y = 4. Work out y when x = 3.

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