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The America Automobile Association reported families planning to travel over labor day spend an average of...

The America Automobile Association reported families planning to travel over labor day spend an average of $749. Assume travel costs are normally distributed with a standard deviation of $200.

  1. What is the probability that a randomly selected family spends more than $800 on their labor day travel plans? (Show Z score)
  2. What is the probability that a randomly selected family spends between $670 and $800 on their labor day travel plans? (Show Z score)
  3. What is the 90th percentile od the cost of labor day plans? Interperet
math   Statistics-And-Probability   
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