Daily Practice · Higher

Daily Practice - Higher

3rd January 1997

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

1
Conditional Probability3 marks
26 students study Spanish and 6 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 ladybird population of a garden. State one assumption the method relies on.
3
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Inequalities on Graphs3 marks
Does the point (-1, 2) satisfy y > -2x + 8?
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 30. Work out y when x = 4.

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