Apps. and Interpretation for IBDP Maths Ebook 1 | Page 241

(b) One youngster received p parcels, where p�
b. Given that p is an outlier, find
the least value of p .
2. The following box-and-whisker plot shows the test scores of a group of students in a
particular test.
[4]
The range and the inter-quartile range of the distribution are 29 and 10 respectively.
(a) Write down the values of a and b .
[2]
(b) One student got k marks, where k � b. Given that k is an outlier, find the least
value of k .
[4]
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3. Consider the following box-and-whisker plot of a distribution.
(a)
Write down the values of
(i)
(ii)
median;
range;
(iii)
inter-quartile range.
Consider the following table of the same distribution.
[3]
Data
Frequency
20 2
28 4
40 q
44 1
(b) Find the value of q .
[3]
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