Casio FX-82AU PLUS Using Manual page 30

Australia and New Zealand joined the First World War
In 1915 soldiers from Australia and New Zealand joined allies from Britain, France and India to
fight against soldiers from Turkey in the Gallipoli Campaign. As you work through this set of
questions you will learn about some of the tragedy of war and of Gallipoli in particular.
1. The youngest ANZAC soldier to die in the Gallipoli Campaign was James Martin. He
was a 14­year­old Australian. In which of the school years, Year 7, Year 9 or Year 11,
would a 14­year­old boy be included today?
2. Major Frank Chapman from New Zealand was the oldest ANZAC to die in Gallipoli. He
was 57 years old. What was the range in ages of ANZAC soldiers who died in the
Gallipoli Campaign?
3. This table shows a random sample of the ages of 520 ANZAC soldiers who died in
Gallipoli.
Use the information in the table to answer these questions
A
What is the modal class?
B
In this context, what does the mode represent?
C
What fraction of the soldiers in the sample were 25 years old or less when they
were killed? Use your calculator to express this fraction in its simplest form.
D
Set your calculator to statistics and enter the class centres in the score column
and the frequencies in the frequency column. Remember to press p after you
enter each value. If you want to change a value, highlight the value and type
over it. When you've finished entering all the values press C. Then press
SHIFT 1 (STAT) and 4 (Var). Press 2 p to find the mean age of the
sample of soldiers killed in the Gallipoli Campaign.
1
The random sample information used in this activity was obtained from information on the Australian
War Memorial, Canberra website.
Gallipoli
Ages Class
(class) centres
16 ­ 20 18
21 ­ 25 23
26 ­ 30 28
31 ­ 35 33
36 ­ 40 38
41 ­ 45 43
46 ­ 50 48
Frequency
78
226
110
58
36
9
3
.
1
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