Daily Practice

Higher Plus

22nd December 1972

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

1
Conditional Probability3 marks
A bag holds 9 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 20 < x <= 25 has a frequency density of 0.4. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 24/sqrt(2), giving your answer in its simplest form.
4
Transforming Graphs y=f(x)3 marks
The point (6, 5) lies on y = f(x). Write down its image on y = f(x - 6).
5
Velocity Time Graphs2 marks
A train slows steadily from 33 m/s to rest in 8 seconds. Work out its deceleration.

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