Daily Practice - Foundation
Grades 3-4 - securing a Foundation pass: fractions, percentages, angles and the first algebra.
26th February 2013
- 1Probability (Higher)3 marks
A biased coin lands on heads with probability 0.15. It is thrown 50 times. How many heads would you expect?
- 2Averages from Frequency Tables3 marks
In a survey 7 households own 1 car, 6 own 2 cars and 6 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 3Error Intervals2 marks
A number y is 52 when truncated to the nearest whole number. Write down the error interval for y.
- 4Substitution2 marks
Work out the value of 9x + 11 when x = -3.
- 5Writing and Simplifying Ratio1 mark
Write the ratio 18 : 30 in its simplest form.
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