Daily Practice

Higher Plus

9th May 1965

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Conditional Probability3 marks
A bag holds 4 red, 4 blue and 3 green counters. Two are taken without replacement. Given neither is green, what is the probability both are red?
2
Histograms3 marks
On a histogram the bar for 40 < x <= 60 has a frequency density of 1.2. How many values are in that class?
3
Bounds3 marks
x = 196 and y = 96, each correct to the nearest whole number. Work out the upper bound of x - y.
4
Factorising Harder Quadratics3 marks
Solve 4x^2 + 5x - 6 = 0.
5
Velocity Time Graphs2 marks
A train slows steadily from 25 m/s to rest in 5 seconds. Work out its deceleration.

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