Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
17th October 1999
- 1Inequalities on Graphs3 marks
Does the point (1, -6) satisfy y > -4x - 5?
- 2Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 6. Write y in terms of x.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 5. The smaller has an area of 18 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.4. It is thrown 50 times. How many heads would you expect?
- 5Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 15 < x <= 20. The frequencies in order are 16, 7, 11, 21, 3. Write down the modal class.
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