Foundation Plus
28th March 1983
- 1Real Life and Distance Time Graphs3 marks
A coach travels 20 km in 0.5 hours, then 70 km in 1 hour. Work out the average speed for the whole journey, to 1 decimal place.
- 2Vectors2 marks
a is the column vector (0, 1) and b is (1, -4). Work out a + b as a column vector.
- 3Probability Trees3 marks
4 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture3 marks
35 voles are marked and released. Later 50 are caught, of which 5 are marked. Estimate the population.
- 5Error Intervals2 marks
A number y is 57 when truncated to the nearest whole number. Write down the error interval for y.
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.
Recent Foundation Plus sheets
Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1983, including the monthly compilation PDF.