Mathematics - Leaving Certificate Examination - Sample Paper - 2012 Page 3
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20Section A
Concepts and Skills
125 marks
Answer all five questions from this section.
Question 1
(25 marks)
The size, mean and standard deviation of four sets of data A, B, C and D are given in this table:
A
B
C
D
size (N)
1000
100
100
10
mean (μ)
10
100
1000
100
standard deviation (σ)
20
30
20
10
Complete the sentences below by inserting the relevant letter in each space:
(a)
The set that contains more numbers than any other is ____ and the set that contains fewer
numbers than any other is ____.
(b)
On average, the data in set ____ are the biggest numbers and the data in set ____ are the
smallest numbers.
(c)
The data in set ____ are more spread out than the data in the other sets.
(d)
The set that must contain some negative numbers is set ____.
(e)
If the four sets are combined, the median is most likely to be a value in set ____.
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Leaving Certificate 2012 – Sample Paper
Page 3 of 19
Project Maths, Phase 1
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