The Centers for Disease Control and Prevention reports that 30% of baby boys 6 - 8 months old in the United States weigh more than 20 pounds. A sample of 10 babies is studied. Round the...
a. number of babies expected to weigh more than 20 pounds.
b. probability that exactly 3 babies weigh more than 20 pounds.
c. probability that at least 3 babies weigh more than 20 pounds.
d. probability that all babies weigh more than 20 pounds.