b) Find the constant c , if \( \mathrm{f}(\mathrm{x}) \) is a probability density function, where \( f(x)=c^{-\frac{1}{8} x^{2}+2 x} ;-\infty<x<\infty \). Hence find mean. .
Added by Shawn J.
Close
Step 1
Therefore, we need to solve: \[ \int_{-\infty}^{\infty} c e^{-\frac{1}{8}x^2 + 2x} \, dx = 1 \] Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 57 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Find the probability density function and the associated cumulative distribution function for the continuous random variable X if X is uniformly distributed on [0, 2]. Find the probability density function f. f(x) = { if ≤ x ≤ otherwise Find the cumulative distribution function F. F(x) = { if x < if ≤ x ≤ if x >
Sri K.
Consider the probability density function $$f(x)=c(1+\theta x), \quad-1 \leq x \leq 1$$ (a) Find the value of the constant $c$. (b) What is the moment estimator for $\theta$ ? (c) Show that $\hat{\theta}=3 \bar{X}$ is an unbiased estimator for $\theta$. (d) Find the maximum likelihood estimator for $\theta$.
Sampling Distributions and Point Estimation of Parameters
Methods of Point Estimation
Find the mean, variance, and standard deviation for the continuous random variable. F(x)=(3x^2, for 0<x<1) (0, otherwise)
Madhur L.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD