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The weight of Labrador Retrievers, a popular breed of dog depicted in Figure 1, is normally...

The weight of Labrador Retrievers, a popular breed of dog depicted in Figure 1, is normally distributed with a mean of 65 pounds and a standard deviation of 6 pounds.

a) What is the probability of observing a Labrador Retriever that weighs more than 77 pounds?

b) What is the probability of observing a Labrador Retriever that weighs between 56 and 74 pounds?

c) What is the 10th percentile weight of Labrador Retrievers?

d) The weight of Miniature Dachshunds, a much smaller breed of dog (see Figure 2), is normally distributed with a mean of 10 pounds and a standard deviation of 1.6 pounds. Which event occurs with lower probability, observing a Labrador Retriever that weighs more than 72 pounds or observing a Miniature Dachshund that weighs less than 7.2 pounds?

Math   Statistics-And-Probability   
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