Math 2058
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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 150 babies is studied. Approximate the probability that 35 or fewer weigh more than 20 pounds
Baby weights: The weight of male babies less than 2 months old in the United States is normally distributed with mean 11.4 pounds and standard deviation 2.7 pounds. (a) What proportion of babies weigh more than 14 pounds? (b) What porportion of babies weigh less than 14 pounds? (c) What proportion of babies weigh between 10 and 15 pounds? (d) Is it unusual for a baby to weigh more than 17 pounds? Round answers to four decimal places. Welcome Students!...
The question is asking for proportions for each problem and for the answers to be rounded four decimal placesĀ Baby weights: The weight of male babies less than 2 months old in the United States is normally distributed with mean 12.5 pounds and standard deviation 5.1 pounds. Use the TI-84 Plus calculator to answer the following. (a) What proportion of babies weigh more than 14 pounds? (b) What proportion of babies weigh less than 16 pounds? (c) What proportion of...