Given a random variable with cdf F(r) A - dt. find its pdf. 相关知识点: 试题来源: 解析 0-=(r)f 0+(Y-)--= (1-1-n-1)(xp)/p- [1x-1-11/p]- [(x-1)/(x-x)]((rp)/p)p= 0x⋅p_n=-4.∫_p^p=(x)d=(x)∫ 0- 反馈 收藏
1. Let X be a uniform (0,1) random variable, and let Y = e^{-X} . a. Find the CDF of Y b. Find the PDF of Y c. Find EY . 2. Let X be a continuous random variable with PDF f_X(x) = l Suppose ...
A continuous random variable X has the following cdf: F (x) = 0 for x is less than 0 F(x) = x^3/8 for 0 \leq x \leq 2 F(x) = 1 for x is greater than 2 (a) Find the pdf of the function. (b) Fi...
The probability density function (PDF) of a continuous random variable describes how the data is distributed in the range of values of the variable. The PDF is the derivative of the cumulative distribution function. Answer and Explanation: The probability density function is given as: ...
Theoretically, PDF can be obtained by taking the first derivative of CDF in case of a continuous random variable but I'm not sure if it's possible to do when the distribution is unknown. P.S.:In Mathematica, by usingSmoothKernelDensityfunction we can have an estimated density function.That...
링크 번역 채택된 답변:MathWorks Support Team I would like to find the expected value of a random variable given a distribution and a constraint. For example, given a normal distribution, what is the expected value of x with the constra...
If X is a continuous random variable and fx(x) gives the probability of the event within its range. Answer and Explanation: Given: f(y)={ky(1−y),0≤y≤10,elsewhere Using the property of probability...Become a ...
OK, to start with, let's approximate this number of radii we need: The average radius would be 2, as this is the average of the random distribution. The formula for the corresponding volume of a sphere is V = 4/3*pi*r^3; so the average numbe...
How to find expected value of normal cdf with a lognormal variable? How to Get Best Site Performance Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location....
To calculate the expected value of x given x>0 and a normal distribution, you can use two methods. First, you can simulate the data set and then select the mean of only the values of x which satisfy the constraint. For example: