Daily Practice

Higher Plus

26th May 1971

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

1
Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 1/3. Work out n.
2
Histograms3 marks
On a histogram the bar for 50 < x <= 55 has a frequency density of 3.5. How many values are in that class?
3
Bounds3 marks
A rectangle is 26 cm by 28 cm, each correct to the nearest cm. Work out the upper bound of its area.
4
Completing the Square3 marks
Write x^2 + 8x + 14 in the form (x + a)^2 + b.
5
Velocity Time Graphs2 marks
A train slows steadily from 14 m/s to rest in 5 seconds. Work out its deceleration.

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