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Birth weights of babies born to full-term pregnancies follow roughly a Normal distribution. At Meadowbrook Hospital,...

Birth weights of babies born to full-term pregnancies follow roughly a Normal distribution. At Meadowbrook Hospital, the mean weight of babies born to full-term pregnancies is 7 pounds with a standard deviation of 14 ounces (1 pound = 16 ounces).
Dr. Watts (who works at Meadowbrook Hospital) has four deliveries (all for full-term pregnancies) coming up during the night. Assume that the birth weights of these four babies can be viewed as a simple random sample. What is the probability that all four babies will weigh more than 7.5 pounds?

A) 0.0065

B) 0.1265

C) 0.2839

D) 0.4858

Math   Statistics-And-Probability   
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