Daily Practice

Foundation Plus

12th January 1985

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.2. It is thrown 50 times. How many heads would you expect?
2
Box Plots2 marks
A box plot has minimum 15, lower quartile 24, median 30, upper quartile 38 and maximum 44. Work out the interquartile range.
3
Standard Form2 marks
Write 82100000 in standard form.
4
Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = 18/x, work out y when x = -2, and write down the equation of its vertical asymptote.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 16. Work out y when x = 13.

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