SOLUTION: I am trying to prepare for my test and I have absolutely no idea how to do this! Each month, an American household generates an average of 28 pounds of newspaper for garbage or

Question 921798: I am trying to prepare for my test and I have absolutely no idea how to do this!
Each month, an American household generates an average of 28 pounds of newspaper for garbage or recycling. Assume the variable is approximately normally distributed and the standard deviation is 2 pounds. If a household is selected at random, find the probability of its generating:
a. Between 27 and 31 pounds per month
b. More than 30.2 pounds per month

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
given: an average of 28 pounds
a.
Find values corresponding to and :

Find the area between and
Table E gives us an area of => The probability is %
b.
Find values corresponding to
Find the area to the right of
it gives you an area of => The probability is %

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