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Use the growth chart to answer the following: Write down, in inches, the measurement of the boy at 9 months.
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Step-by-step solution
4 stepsRead the measures from the Length-for-age and Weight-for-age percentiles chart for boys at 9 months.
The plotted point for length-for-age is at 28 inches on the vertical axis.
The plotted point for weight-for-age is at 18 pounds on the vertical axis.
The length is 28 inches and the weight is 18 pounds.
Identify the measure for which the boy has a low percentile.
On the Length-for-age and Weight-for-age chart at 9 months, the length point is near the 50th percentile line (average).
The weight point is below the 10th percentile line (low).
The measure is weight-for-age.
Weight-for-age
Estimate the weight-for-length percentile from the Weight-for-length percentiles chart.
The plotted point using length = 28 inches and weight = 18 pounds lies between the 3rd and 5th percentile curves.
The percentile is approximately the 5th percentile.
Approximately the 5th percentile
State whether the weight-for-length percentile is low.
The 5th percentile is below the 10th percentile, which indicates low.
The percentile is low.
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