What percent of the babies born at 36 weeks gestation period have a low birth weight (under 5.5 pounds)?

Describe the weights of the top 10% of the babies born at 32-35 weeks gestation.

What is the probability that a baby born at 40 weeks gestation will weigh between 6 and 9 pounds at birth?

A birth weight of less than 3.3 pounds is classified by the NCHS as a "very low birth weight." What is the probability that a baby has a very low birth weight at 27 weeks? At 37 weeks?

A baby is born at 34 weeks gestation and weighs 5 pounds and 11 ounces. Is this an unusual outcome? Why or why not?

Gestation Period	Mean birth weight	Standard deviation
Under 28 weeks	1.88	1.19
28 to 31 weeks	4.07	1.87
32 to 35 weeks	5.73	1.48
36 weeks	6.46	1.2
37 to 39 weeks	7.33	1.09
40 weeks	7.72	1.05
41 weeks	7.83	1.08
42 weeks and over	7.65	1.12