The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption of American men is normally distributed with a standard deviation of 0.9 grams. Suppose an American man is randomly chosen. Let X the amount of sodium consumed. Round all numeric answers to 4 decimal places where possible. a. What is the distribution of X? X N b. Find the probability that this American man consumes between 10.4 and 11 grams of sodium per day. c. The middle 20% of American men consume between what two weights of sodium? Low: High:

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The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption
of American men is normally distributed with a standard deviation of 0.9 grams. Suppose an American man
is randomly chosen. Let X the amount of sodium consumed. Round all numeric answers to 4 decimal
places where possible.
a. What is the distribution of X? X N
b. Find the probability that this American man consumes between 10.4 and 11 grams of sodium per day.
c. The middle 20% of American men consume between what two weights of sodium?
Low:
High:
Transcribed Image Text:The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption of American men is normally distributed with a standard deviation of 0.9 grams. Suppose an American man is randomly chosen. Let X the amount of sodium consumed. Round all numeric answers to 4 decimal places where possible. a. What is the distribution of X? X N b. Find the probability that this American man consumes between 10.4 and 11 grams of sodium per day. c. The middle 20% of American men consume between what two weights of sodium? Low: High:
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The mean is 9.9 grams of sodium each day and the standard deviation is 0.9 grams.

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