Birth weights in the US have a distribution that is approxim…
Birth weights in the US have a distribution that is approximately normal with a mean of 3369g and a standard deviation of 567g. a. One definition of a premature baby is that the birth weight is below 2500g. If a baby is randomly selected, find the probability of a birth weight below 2500g. b. Another definition of a premature baby is that the birth weight is in the bottom 10% of birth weights. Find the birth weight that is the cutoff for the bottom 10%. c. A definition of a “very low birth weight” is one that is less than 1500g. If a baby is randomly selected, find the probability of a “very low birth weight”. d. If 25 babies are randomly selected, find the probability that their mean birth weight is greater than 3400g