Question

a newborn who weighs 2,500 g or less has a low birth weight. use the information on the right to find the z-score of a 2,500 g baby.

what is the z-score of a newborn who weighs 4,000 g?

in the united states, birth weights of newborn babies are approximately normally distributed with a mean of \\(\mu = 3,500\text{ g}\\) and a standard deviation of \\(\sigma = 500\text{ g}\\).

\\z = \frac{x - \mu}{\sigma}\\

Explanation:

Identify the given values

Using the Z-Score Formula knowledge point

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Calculate the z-score

Using the Z-Score Formula knowledge point

$$ z = \frac{4000 - 3500}{500} = \frac{500}{500} = 1 $$

Answer:

What is the z-score of a newborn who weighs 4,000 g? <blank>1</blank>