The number of miles driven by a truck driver in a day falls between 400 and 800, and follows a uniform distribution. (a) Find the probability that the truck driver goes more than 750 miles in a day. (Round your answer to three decimal places.) (b) Find the probability that the truck drivers goes between 425 and 750 miles in a day. (Round your answer to three decimal places.) (c) At least how many miles does the truck driver travel on the furthest 30% of days? (Enter your answer as a whole number.) _______miles
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
The number of miles driven by a truck driver in a day falls between 400 and 800, and follows a uniform distribution.
(b) Find the probability that the truck drivers goes between 425 and 750 miles in a day. (Round your answer to three decimal places.)
(c) At least how many miles does the truck driver travel on the furthest 30% of days? (Enter your answer as a whole number.)
_______miles
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
