Question

In: Statistics and Probability

Toby s Trucking Company determined that the distance traveled per truck per year is normally distributed,...

Toby s Trucking Company determined that the distance traveled per truck per year is normally distributed, with a mean of 50.0 thousand miles and a standard deviation of 12.0 thousand miles.

a. What proportion of trucks can be expected to travel between 34.0 and 50.0 thousand miles in the year?

b. What percentage of trucks can be expected to travel either below 30.0 or above 60.0 thousand miles in the year?

c. How many miles will be traveled by at least 80% of the trucks?

d. What are your answers to (a) through (c) if the standard deviation is 10.0 thousand miles?

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking 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 48 and 60 thousand miles in a​ year? b. What percentage of trucks can be expected to travel either less than 40 or more than 75 thousand miles in a​ year? c. How...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 50 thousand miles and a standard deviation of 12 thousand miles. Complete parts​ (a) through​ (c) below. a. nbsp What proportion of trucks can be expected to travel between 34 and 50 thousand miles in a​ year? The proportion of trucks that can be expected to travel between 34 and 50 thousand miles in a year is . 4082. ​(Round to...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 80 thousand miles and a standard deviation of 10 thousand miles. How many miles will be traveled by at least 70​% of the​ trucks? The number of miles that will be traveled by at least 70​% of the trucks is ___miles. ​(Round to the nearest mile as​ needed.) d. What are your answers to parts​ (a) through​ (c) if the standard...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 70 thousand miles and a standard deviation of 10 thousand miles. Complete parts​ (a) through​ (c) below. a. nbsp What proportion of trucks can be expected to travel between 59 and 70 thousand miles in a​ year? The proportion of trucks that can be expected to travel between 59 and 70 thousand miles in a year is nothing. ​(Round to four...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 50 thousand miles and a standard deviation of 10 thousand miles. Complete parts​ (a) through​ (b) below. a. What proportion of trucks can be expected to travel between 37 and 50 thousand miles in a​ year? The proportion of trucks that can be expected to travel between 37 and 50 thousand miles in a year is__. ​(Round to four decimal places...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 40 thousand miles and a standard deviation of 11 thousand miles c. How many miles will be traveled by at least 65% of the trucks? 1d) If the standard deviation is 7 thousand miles, the proportion of trucks that can be expected to travel between 27 and 40 thousand miles in a year is? 2d) If the standard deviation is 7...
A trucking company determined that the distance traveled per truck per year is normally distributed, with...
A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean 60 thousand miles and a standard deviation of 11 thousand miles. How many miles will be traveled by at least 65% of the truck? The number of miles that will be traveled by at least 65% of the truck is ____ miles
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 70 thousand miles and a standard deviation of 12 thousand miles. Complete parts​ (a) through​ (c) below. a. What proportion of trucks can be expected to travel between 53 and 70 thousand miles in a​ year? (Round to four decimal places as​ needed.) b. What percentage of trucks can be expected to travel either less than 75 or more than 110...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with...
A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 80 thousand miles and a standard deviation of 10 thousand miles. Complete parts​ (a) through​ (c) below. a. nbsp What proportion of trucks can be expected to travel between 66 and 80 thousand miles in a​ year? The proportion of trucks that can be expected to travel between 66 and 80 thousand miles in a year is . 4192. ​(Round to...
Q2. Distance (000, miles) traveled by a truck in a year is distributed normally with μ...
Q2. Distance (000, miles) traveled by a truck in a year is distributed normally with μ = 50.0 and σ = 12.0.        Find a. the proportion of trucks are expected to travel from 34.0 to 59 (000, miles)? (0.6816) b. the probability that a randomly selected truck travels from 34.0 to 38.0 (000, miles)? (0.0669) c. the %age of trucks that are expected to travel either below 30.0 or above 59.0 (000 miles) ? (27.41) d. how many of...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT