1. Consider the Continuous Distribution Given by its Probability Density Function f(x) = x € [10, 30] [10,30] A. Confirm that f(x) is indeed a Probability Density Function. Thus you have to show that the following two conditions are true 1. f(x) > 0 II. The Area under its graph is equal to 1. Hint: Its a graph will be a Triangle x < 10 0 B. Confirm that F(x) = (x − 10)² ÷ 400 10 ≤ x ≤ 30 is the 1 x > 30 Cumulative Distribution Function (CDF) of this probability density function. Hint: Area under a curve is gonna be a triangle, compute its area at a given point. 2-10 200 0

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# Continuous Distribution and Probability Density Function

## 1. Consider the Continuous Distribution Given by its Probability Density Function

\[ f(x) = 
  \begin{cases} 
   \frac{x-10}{200} & x \in [10, 30] \\
   0 & x \notin [10, 30] 
  \end{cases}
\]

### A. Confirm that \( f(x) \) is indeed a Probability Density Function.
To do this, you must demonstrate that the following two conditions are true:

1. \( f(x) \geq 0 \)

2. The area under its graph is equal to 1. 
   - **Hint:** Its graph will be a triangle.

### B. Confirm that 

\[ F(x) = 
  \begin{cases} 
   0 & x < 10 \\
   \frac{(x-10)^2}{400} & 10 \leq x \leq 30 \\
   1 & x > 30 
  \end{cases}
\]

is the Cumulative Distribution Function (CDF) of this probability density function.
- **Hint:** The area under a curve is going to be a triangle, compute its area at a given point.

### Explanation of the Graph:
The function \( f(x) \) is defined as a piecewise function with a linear segment between \( x = 10 \) and \( x = 30 \), forming a triangle when graphed. The base of this triangle is along the x-axis from \( 10 \) to \( 30 \), while the height is determined by the slope \( \frac{1}{200} \). This ensures the total area under the curve is 1, satisfying the requirement for a probability density function.
Transcribed Image Text:# Continuous Distribution and Probability Density Function ## 1. Consider the Continuous Distribution Given by its Probability Density Function \[ f(x) = \begin{cases} \frac{x-10}{200} & x \in [10, 30] \\ 0 & x \notin [10, 30] \end{cases} \] ### A. Confirm that \( f(x) \) is indeed a Probability Density Function. To do this, you must demonstrate that the following two conditions are true: 1. \( f(x) \geq 0 \) 2. The area under its graph is equal to 1. - **Hint:** Its graph will be a triangle. ### B. Confirm that \[ F(x) = \begin{cases} 0 & x < 10 \\ \frac{(x-10)^2}{400} & 10 \leq x \leq 30 \\ 1 & x > 30 \end{cases} \] is the Cumulative Distribution Function (CDF) of this probability density function. - **Hint:** The area under a curve is going to be a triangle, compute its area at a given point. ### Explanation of the Graph: The function \( f(x) \) is defined as a piecewise function with a linear segment between \( x = 10 \) and \( x = 30 \), forming a triangle when graphed. The base of this triangle is along the x-axis from \( 10 \) to \( 30 \), while the height is determined by the slope \( \frac{1}{200} \). This ensures the total area under the curve is 1, satisfying the requirement for a probability density function.
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