The Centers for Disease Control and Prevention reports that 25% of baby boys 6–8 months old in the United States weigh more than 20 pounds. A sample of 16 babies is studied. a. What is the probability that exactly 5 of them weigh more than 20 pounds? b. What is the probability that more than 6 weigh more than 20 pounds?
The Centers for Disease Control and Prevention reports that 25% of baby boys 6–8 months old in the United States weigh more than 20 pounds. A sample of 16 babies is studied. a. What is the probability that exactly 5 of them weigh more than 20 pounds? b. What is the probability that more than 6 weigh more than 20 pounds?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
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Big babies: The Centers for Disease Control and Prevention reports that 25% of baby boys 6–8 months old in the United States weigh more than 20 pounds. A sample of 16 babies is studied.
a. |
What is the probability that exactly 5 of them weigh more than 20 pounds? |
b. |
What is the probability that more than 6 weigh more than 20 pounds? |
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