Question
Given the probability density function (p.d.f.) of a continuous random variable $x$ as:
$\begin{aligned}
f(x) & =\frac{x^2}{3}, & -1<x<2 \\
& =0, & \text { otherwise }
\end{aligned}$
Determine the cumulative distribution function (c.d.f.) of $X$ and hence find
$P ( X <1), P ( X >0), P (1< X <2) \text {. }$

Answer

coming soon

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Show that lines $\bar{r}=(\hat{i}+\hat{j}-\hat{k})+\lambda(2 \hat{i}-2 \hat{j}+\hat{k})$ and $\bar{r}=(4 \hat{i}-3 \hat{j}+2 \hat{k})+\mu(\hat{i}-2 \hat{j}+2 \hat{k})$ are coplanar. Find the equation of the plane determined by them.
Show that the combined equation of a pair of lines through the origin and each making an

angle of $\alpha$ with the line $x+y=0$ is $x^2+2(\sec 2 \alpha) x y+y^2=0$.

Solve the following LPP by using graphical method.
Maximize : $Z =6 x+4 y$
Subject to $x \leq 2, x+y \leq 3,-2 x+y \leq 1, x \geq 0, y \geq 0$.
Water at $100^{\circ} \mathrm{c}$ cools in 10 minutes to $88^{\circ} \mathrm{c}$ in a room temperature of $25^{\circ} \mathrm{c}$. Find the temperature of water after 20 minutes.
Find the expected value, variance and standard derivation of random variable $X$ whose probability mass function $(p.m.f.)$ is given below
$X =x$ $1$ $2$ $3$
$P ( X =x)$ $\frac{1}{5}$ $\frac{2}{5}$ $\frac{2}{5}$
Prove that two vectors whose direction cosines are given by relations al + bm + cn = 0

and $\mathrm{fmn}+\mathrm{gnl}+\mathrm{hlm}=0$ are perpendicular if $\frac{f}{a}+\frac{g}{b}+\frac{h}{c}=0$

Show that $2 \sin ^{-1}\left(\frac{3}{5}\right)=\tan ^{-1}\left(\frac{24}{7}\right)$.
Evaluate: $\int_0^\pi x \cdot \sin x \cdot \cos ^2 x \cdot d x$
A stone is dropped into a pond. Waves in the form of circles are generated and the radius of the outermost ripple increases at the rate of $2 inch / sec$. How fast will the area of the wave increase.
(a) when the radius is 5 inch?
(b) after 5 seconds ?
Prove that: $\int_0^{2 a } f (x) d x=\int_0^{ a } f (x) d x+\int_0^{ a } f (2 a -x) d x$