Probability in birth weight between babies
Consider babies born in the “normal” range of 37 –
43 weeks gestational age. Extensive data supports the assumption that for such
babies born in the United States, birth weight is normally distributed with
mean = 3432 grams and standard deviation = 482 grams.
What is the probability that the birth weight of a randomly
selected baby of this type:
a. is
between 3000 and 4000 grams
b. exceeds
4000 grams
c. is
either less than 200 grams or greater than 5000 grams
d. is no
more than 3432 grams





