The time (in minutes) until the next bus departs a major bus depot follows distribution with f(x) = - where x goes from 25 to 45 minutes. 20 O Part (a) O Part (b) Give the distribution of X. (Enter exact numbers as integers, fractions, or decimals.) X-? v O Part (c) Graph the probability distribution. f(X) fX) 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 40 45 50 f(X) f(X) 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 X 5 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 40 45 50
The time (in minutes) until the next bus departs a major bus depot follows distribution with f(x) = - where x goes from 25 to 45 minutes. 20 O Part (a) O Part (b) Give the distribution of X. (Enter exact numbers as integers, fractions, or decimals.) X-? v O Part (c) Graph the probability distribution. f(X) fX) 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 40 45 50 f(X) f(X) 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 X 5 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 40 45 50
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:The time (in minutes) until the next bus departs a major bus depot follows a distribution with \( f(x) = \frac{1}{20} \) where \( x \) goes from 25 to 45 minutes.
**Part (a)**
**Part (b)**
Give the distribution of \( X \). (Enter exact numbers as integers, fractions, or decimals.)
\( X \sim \) (________, ________)
**Part (c)**
Graph the probability distribution.
There are four graphs displayed, each representing different probability distributions. The correct graph should represent a uniform distribution with a constant probability \( f(x) = \frac{1}{20} \) over the interval from 25 to 45 minutes.
1. **First Graph:**
- Horizontal line at \( f(x) = 0.05 \) from \( x = 0 \) to \( x = 50 \).
2. **Second Graph:**
- Horizontal line from \( x = 25 \) to \( x = 45 \), with a height of \( f(x) = 0.05 \).
3. **Third Graph:**
- Horizontal line at \( f(x) = 0.20 \) from \( x = 0 \) to \( x = 50 \).
4. **Fourth Graph:**
- Horizontal line from \( x = 5 \) to \( x = 15 \), with a height of \( f(x) = 0.05 \).
The correct graph should be the second one, representing the uniform distribution over the interval from 25 to 45.
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