Daily Practice

Higher Plus

24th September 1989

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

1
Conditional Probability3 marks
A bag holds 7 red and 3 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
2
Histograms3 marks
On a histogram the bar for 60 < x <= 80 has a frequency density of 1.5. How many values are in that class?
3
Bounds3 marks
x = 156 and y = 49, each correct to the nearest whole number. Work out the upper bound of x - y.
4
Transforming Graphs y=f(x)3 marks
The point (4, 3) lies on y = f(x). Write down its image on y = f(x - 6).
5
Velocity Time Graphs2 marks
A train slows steadily from 17 m/s to rest in 10 seconds. Work out its deceleration.

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