Foundation Plus
21st November 1965
- 1Real Life and Distance Time Graphs2 marks
Callum drives 120 km in 2 hours. Work out the average speed in km/h.
- 2Vectors2 marks
a is the column vector (0, 6) and b is (-7, 4). Work out a + b as a column vector.
- 3Probability Trees3 marks
1 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture3 marks
25 newts are marked and released. Later 40 are caught, of which 8 are marked. Estimate the population.
- 5Error Intervals2 marks
A number y is 70 when truncated to the nearest whole number. Write down the error interval for y.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1965, including the monthly compilation PDF.