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Answer:
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.
⇒ -2
What is the z-score of a newborn who weighs 4,000 g?
⇒ 1
What weight would give a newborn a z-score of –0.75?
⇒ 3125 grams
Step-by-step explanation:
The z-score of a 2500 g baby is -2
The given parameters are:
- Mean = 3500 g
- Standard deviation = 500 g.
The z-score of a data element is calculated using:
[tex]z = \frac{x - \mu}{\sigma}[/tex]
So, the z-score of a 2500 g baby is:
[tex]z = \frac{2500 - 3500}{500}[/tex]
Simplify the numerator
[tex]z = -\frac{1000}{500}[/tex]
Evaluate the quotients
[tex]z = -2[/tex]
Hence, the z-score is -2
Read more about z-scores at:
https://brainly.com/question/4079902