Daily Practice

Higher Plus

23rd March 1982

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 60 wins. How many games did they play?
2
Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 3, 2, 0.5, 1. Which class contains the median?
3
Surds3 marks
Expand and simplify (6 + sqrt(5))(6 - sqrt(5)).
4
Inverse and Composite Functions3 marks
f(x) = 4x + 7 and g(x) = 5x - 4. Work out fg(4).
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 49, y = 63. Work out y when x = 9.

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