Daily Practice

Higher Plus

12th September 1989

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 3/5. A player expects 9 wins. How many games did they play?
2
Histograms3 marks
On a histogram the bar for 0 < x <= 5 has a frequency density of 2.4. How many values are in that class?
3
Surds3 marks
Expand and simplify (7 + sqrt(11))(7 - sqrt(11)).
4
Iteration3 marks
Use the iteration x(n+1) = cube root of (11x(n) + 6) with x(0) = 3. Work out x(1) to 3 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 48. Work out y when x = 5.

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