PPH4811 Assignment 1 Semester 1 Memo | Due May 2026

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1

, PLEASE USE THIS DOCUMENT AS A GUIDE ONLY

1. Write a formular and steps to the answers

Data: 12.0, 10.5, 9.5, 6.3, 13.5, 12.5, 7.2 (Measurements of Hb from 7 malaria-infected patients)

(a) Mean

Formula:
The arithmetic mean is the sum of all observed values divided by the number of observations
(Kirkwood & Sterne, 2003).




Where:

• :e !:: 111ean
• ~ 1 zi = sum of all haemoglobin values
• n ..;. "total number of patients (7)

Steps:
 Sum all Hb values: 12.0+10.5+9.5+6.3+13.5+12.5+7.2
 Calculate total: 12.0+10.5=22.5; 22.5+9.5=32.0; 32.0+6.3=38.3; 38.3+13.5=51.8;
51.8+12.5=64.3; 64.3+7.2=71.5
 Divide the sum by the number of patients: 71.5÷7
 Result: Mean = 10.21 g/dL (rounded to two decimal places)
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