Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 17 days and a standard deviation of 4 days. Let X be the number of days for a randomly selected trial. Round all answers to 4 decimal places unless instructed otherwise. What is the distribution of X? X ~ N(,)b. If one of the trials is randomly chosen, find the probability that it lasted at least 14 days. c. If one of the trials is randomly chosen, find the probability that it lasted between 20 and 25 days.d. 90% of all of these types of trials are completed within how many days? (Please enter a whole number)
Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 17 days and a standard deviation of 4 days. Let X be the number of days for a randomly selected trial. Round all answers to 4 decimal places unless instructed otherwise. What is the distribution of X? X ~ N(,)b. If one of the trials is randomly chosen, find the probability that it lasted at least 14 days. c. If one of the trials is randomly chosen, find the probability that it lasted between 20 and 25 days.d. 90% of all of these types of trials are completed within how many days? (Please enter a whole number)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Suppose that the duration of a particular type of criminal trial is known to be
- What is the distribution of X? X ~ N(,)
b. If one of the trials is randomly chosen, find theprobability that it lasted at least 14 days.
c. If one of the trials is randomly chosen, find the probability that it lasted between 20 and 25 days.
d. 90% of all of these types of trials are completed within how many days? (Please enter a whole number)
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