d. What are your answers to parts (a) through (c) if the standard deviation is 8 thousand miles? If the standard deviation is 8 thousand miles, the proportion of trucks that can be expected to travel...

Answer al please i will 3 upvote  rating

Extracted text: d. What are your answers to parts (a) through (c) if the standard deviation is 8 thousand miles? If the standard deviation is 8 thousand miles, the proportion of trucks that can be expected to travel between 45 and 60 thousand miles in a year is (Round to four decimal places as needed.) If the standard deviation is 8 thousand miles, the percentage of trucks that can be expected to travel either less than 50 or more than 75 thousand miles in a year is % (Round to two decimal places as needed.) If the standard deviation is 8 thousand miles, the number of miles that will be traveled by at least 65% of the trucks is miles. (Round to the nearest mile as needed.)


Extracted text: A Irucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 60 thousand miles and a standard deviation of 10 thousand miles. Complete parts (a) through (d) below. a. What proportion of trucks can be expected to travel between 45 and 60 thousand miles in a year? The proportion of trucks that can be expected to travel between 45 and 60 thousand miles in a yoar is (Round to four decimal places as needed ) b. What percentage of trucks can be expected to travel either less than 50 or more than 75 thousand miles in a year? The percentage of trucks that can be expected to travel oither less than 50 or more than 75 thousand miles in a year is%. (Round to two decimal places as neded) c. How many miles will be traveled by at least 65% of the trucks? The number of miles that will be traveled by at least 65% of the trucks is miles (Round to the nearest mile as needed) ols d. What are your answers to parts (a) through (c) if the standard deviation is 8 thousand miles? if the standard deviation is 8 thousand miles, the proportion of trucks that can be expected to travel between 45 and 60 thousand miles in a year is (Round to four decimal places as needed.)