Daily Practice · Higher Plus

Daily Practice - Higher Plus

6th May 1993

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

1
Conditional Probability3 marks
A bag holds 10 red and 4 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 <= 40 has a frequency density of 3.5. How many values are in that class?
3
Surds3 marks
Simplify sqrt(12) + sqrt(147), giving your answer in the form a sqrt(b).
4
The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence 6, 12, 20, 30, ...
5
Velocity Time Graphs2 marks
A train slows steadily from 12 m/s to rest in 8 seconds. Work out its deceleration.

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