Suppose that the duration of a particular type of criminal trial is known to be normally distributedwith a mean of 21 days and a standard deviation of 6 days. Let X be the number of days for arandomly selected trial. Round all answers to 4 decimal places where possible.a. What is the distribution of X? X ~ N( 21b. If one of the trials is randomly chosen, find the probability that it lasted at least 18 days.0.6915c. If one of the trials is randomly chosen, find the probability that it lasted between 23 and 28 days.d. 79% of all of these types of trials are completed within how many days? (Please enter a wholenumber)

Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 21 days and a standard deviation of 6 days. Let X be the number of days for a randomly selected trial. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( 21 6 b. If one of the trials is randomly chosen, find the probability that it lasted at least 18 days. 0.6915 c. If one of the trials is randomly chosen, find the probability that it lasted between 23 and 28 days. d. 79% 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 21 days and a standard deviation of 6 days. Let X be the number of days for a randomly selected trial. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( 21 6 b. If one of the trials is randomly chosen, find the probability that it lasted at least 18 days. 0.6915 c. If one of the trials is randomly chosen, find the probability that it lasted between 23 and 28 days. d. 79% 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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