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Q3. The weights of pennies minted after 1982 are approximately normally distributed with mean 2.46 grams...

Q3. The weights of pennies minted after 1982 are approximately normally distributed with mean 2.46 grams and standard deviation 0.02 grams. (a) Draw a normal curve with the parameters labeled and shade the region under the normal curve between 2.44 and 2.49 grams. (b) What is the value of the shaded region in the part (a) above? Provide two interpretations for this area.

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Answer #1

Given mean and standard deviation

Let and

and

a)

  

  

  

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