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The average weight of a National Football League player varies according to a distribution that is...

The average weight of a National Football League player varies according to a distribution that is approximately Normal with mean of 230 pounds and a standard deviation of 15 pounds.

  1. How many standard deviations above the mean is a weight of 249 pounds?

    Round to 4 places.
  2. What is the proportion of players with a weight below 194 pounds?

    Round to 4 places.
  3. What is the proportion of players with a weight between 194 and 249 pounds?

    Round to 4 places.
  4. How much must a player weigh to be in the highest 5% of the weights?

    Round to the nearest pound.
  5. Choose 50 National Football League players at random. What is the probability that their average weight exceeds 235?

    Round to 4 places.
math   Statistics-And-Probability   
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