A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 30 thousand miles and a standard deviation of 11 thousand miles. Complete parts (a) through (d) below. a. What proportion of trucks can be expected to travel between 17 and 30 thousand miles in a year? The proportion of trucks that can be expected to travel between 17 and 30 thousand miles in a year is (Round to four decimal places as needed.)

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