Daily Practice

Higher

30th October 1981

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

1
Conditional Probability3 marks
13 students study Spanish and 8 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
Drawing Quadratic Graphs2 marks
For the curve y = x^2 - x - 8, work out y when x = -3.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 42. Work out y when x = 14.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1981, including the monthly compilation PDF.