Assume that the mean birth weight for babies in the U.S. is normally distributed with a mean of 7 pounds and a standard deviation of 1.5 pounds.

What percent of babies can we expect to be born with a birth weight of 4 pounds or less?

What percent of babies can we expect to be born with birth weights between 6 and 8 pounds?

What percent of babies can we expect to be born with a birth weight of 6 pounds or more?

What percent of babies can we expect to be born with a birth weight of 5.5 pounds or less, or 8.5 pounds or more?

If 3,853,472 babies were born in the U.S. last year, how many weighed 10 pounds or more?

What percent of babies can we expect to be born with birth weights between 5 and 8 pounds?

If 3,853,472 babies were born in the U.S. last year, how many weighed 5 pounds or less?

If 3 million babies were born in the U.S. last year, how many babies weighed 7 pounds or more?