Wood Duck Weights

Suppose that it is known that the weights of adult wood ducks is normally distributed with a mean of 450 g and a standard deviation of 50 g. Use this information to answer the following questions.

  1. What percentage of wood ducks weigh between 350 and 550 g?
  2. What percentage of wood ducks weigh more than 550 g?
  3. What percentage of wood ducks weigh less than 400 g?
  4. What percentage of wood ducks weigh less than 500 g?
  5. What percentage of wood ducks weigh between 350 and 500 g?

 

  1. What is the wood duck weights for the most common 68% of wood ducks?
  2. What is the wood duck weight for the lightest (smallest) 16% of wood ducks?
  3. What is the wood duck weight for the heaviest 2.5% of wood ducks?