x<0 A continuous random variable X has a cdf given by F(x)={x Osx<1. [o a) Find the pdf. y21 Compute Psxs b) using the cdf. Compute Psxs) c) using the pdf.

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**Topic: Continuous Random Variables and Probability Distributions**

**Problem:**

A continuous random variable \( X \) has a cumulative distribution function (cdf) given by:

\[
F(x) = 
\begin{cases} 
0 & \text{for } x < 0 \\
x^2 & \text{for } 0 \le x < 1 \\
1 & \text{for } x \ge 1 
\end{cases}
\]

**Questions:**

a) Find the probability density function (pdf).

b) Compute \( P\left(\frac{1}{2} \le X \le \frac{3}{4}\right) \) using the cdf.

c) Compute \( P\left(\frac{1}{2} \le X \le \frac{3}{4}\right) \) using the pdf.

**Explanation:**

- To find the pdf from the cdf, differentiate \( F(x) \) with respect to \( x \).
- For part b, evaluate the cdf at the boundaries and subtract: \( F\left(\frac{3}{4}\right) - F\left(\frac{1}{2}\right) \).
- For part c, integrate the pdf from \( \frac{1}{2} \) to \( \frac{3}{4} \).
Transcribed Image Text:**Topic: Continuous Random Variables and Probability Distributions** **Problem:** A continuous random variable \( X \) has a cumulative distribution function (cdf) given by: \[ F(x) = \begin{cases} 0 & \text{for } x < 0 \\ x^2 & \text{for } 0 \le x < 1 \\ 1 & \text{for } x \ge 1 \end{cases} \] **Questions:** a) Find the probability density function (pdf). b) Compute \( P\left(\frac{1}{2} \le X \le \frac{3}{4}\right) \) using the cdf. c) Compute \( P\left(\frac{1}{2} \le X \le \frac{3}{4}\right) \) using the pdf. **Explanation:** - To find the pdf from the cdf, differentiate \( F(x) \) with respect to \( x \). - For part b, evaluate the cdf at the boundaries and subtract: \( F\left(\frac{3}{4}\right) - F\left(\frac{1}{2}\right) \). - For part c, integrate the pdf from \( \frac{1}{2} \) to \( \frac{3}{4} \).
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