1.)THE WEIGHTS OF NEWBORN BABIES IN THE US VARY ACCORDING TO THE NORMAL DISTRIBUTION WITH MEAN 7.5 POUNDS AND STANDARD DEVIATION 1.25 FIND THE PROBABILITY THAT A RANDOMLY CHOSEN NEWBORN HAS A WEIGHT OF LESS THAN 5.5 POUNDS AT BIRTH

2.)FIND THE WEIGHT, X, SUCH THAT ONLY 10% OF NEWBORNS WEIGH MORE THAN X.

3.)YOU RANDOMLY CHOOSE 4 NEWBORN, AND COMPUTER THEIR AVERAGE WEIGHT X. FIND THE MEAN AND THE STANDARD DEVIATION OF THE SAMPLING DISTRIBUTION OF X.