4.1.1 Explain what it means if the baby's weight-for-age relationship is on the 85th percentile curve - NSC Mathematical Literacy - Question 4 - 2016 - Paper 1
Question 4
4.1.1 Explain what it means if the baby's weight-for-age relationship is on the 85th percentile curve.
4.1.2 Determine the weight of an 11-month-old baby whose weig... show full transcript
Worked Solution & Example Answer:4.1.1 Explain what it means if the baby's weight-for-age relationship is on the 85th percentile curve - NSC Mathematical Literacy - Question 4 - 2016 - Paper 1
Step 1
Explain what it means if the baby's weight-for-age relationship is on the 85th percentile curve.
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Answer
Being on the 85th percentile curve means that 15% of babies weigh more than this baby, while 85% weigh less. It indicates a healthy weight compared to peers of the same age.
Step 2
Determine the weight of an 11-month-old baby whose weight-for-age relationship is on the 50th percentile curve.
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Answer
The weight of an 11-month-old baby on the 50th percentile is approximately 9.4 kg. This means that half of the babies weigh less than this amount.
Step 3
On which percentile curve is this baby's weight-for-age relationship?
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Answer
The weight of the 18-month-old baby at 11 kg is on the 85th percentile curve, as it indicates a weight that is greater than most peers but still in a healthy range.
Step 4
Calculate the body mass index (BMI) for this baby if he is 80 centimetres tall.
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