Higher
23rd February 1984
- 1Probability Trees3 marks
6 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Histograms2 marks
A histogram class is 20 units wide and contains 10 values. Work out the frequency density.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.4343... as a fraction in its simplest form.
- 4Equation of a Line3 marks
A line has gradient -4 and passes through (3, -14). Work out its equation.
- 5Repeated Percentage Change3 marks
A town's population is 29000 and grows by 8% each year. Work out the population after 3 years, to the nearest whole number.
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 Higher sheets
Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1984, including the monthly compilation PDF.