Exercise 16. The x²(v) distribution is a special case of Gamma distribution (not to be con- fused with gamma function; see below). The density function of the Gamma distribution with parameters and k is given by where 4(x) = { 0 1 r(k) ok T(k): xk-le-x/0 е = 2 ∞ • 10 201² is the gamma function. For every k ≥ 1, 0 > 0, find the point at which p(x) has its maximum. if x > 0, and otherwise, -x dx
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- (c) Let X follow the gamma distribution with pdf S(z) = r(a) on z> 0. If a =1 and V(X)=4 find the value of b, and hence find E(X).The cumulative distribution function of the continuous uniform distribution between con- stants a and b is given by F(x) = P(X ≤ x) = x-a - a x b (a) The probability density function is f(x) = F(r). Find the form of f(x). (b) Find the derivative of f(x) for x = [a, b]. Is f(x) decreasing, increasing or flat in this region? (c) Does f(x) have a single maximum in the region [a,b]? If so, what is it, or if not, why not?The lifetime, X, of a particular integrated circuit has an exponential distribution with rate of λ=0.5 per year. Thus, the density of X is: f(x,x) = 1 e-^x for 0 ≤ x ≤ ∞o, λ = 0.5. λ is what R calls rate. Hint: This is a problem involving the exponential distribution. Knowing the parameter for the distribution allows you to easily answer parts a,b,c and use the built-in R functions for the exponential distribution (dexp(), pexp(), qexp()) for other parts. Or (not recommended) you should be able to use the R integrate command with f(x) defined as above or with dexp() for all parts. d) What is the probability that X is greater than its expected value? e) What is the probability that X is > 5? f) What is the probability that X is> 10? g) What is the probability that X > 10 given that X > 5? h) What is the median of X? Please solution USING R script
- Consider times at which a parent provisions nestlings, that is, the time be- tween arrivals of a parent carrying food for the nestlings. Suppose that the waiting time between arrivals of a parent bird follows the exponential density function f (t) = 0.6e-0,61 for t z 0 and f (t) = 0 for t < 0, where the waiting times are in minutes. (a) What is the mean waiting time? (b) Find the probability that the wait will be between 2 and 5 minutes. (c) Find the probability that the wait will be at least 3 minutes.Need typed solution plz.7. Find the related density function for the following distribution functions: 1 (a) F(x)= arctan x, − or co T I (b) F(x)=0 if x <0, 1-e-*if x≥0; 0≥0. 2 x² (c) F(x) = 0, if x < 0, + if 0 < x < 1, 2x - 2 2 1, if 1b. The random variable X has probability density function, f given by E(1+x?), 0< r < 3 f(x) = 0, otherwise Let Y be a random variable such that Y = 3X +1 (i) Find the distribution function of Y i.e. H(y). (the function need not be simplified) (ii) Using this distribution function, determine the 60th percentile of Y. (iii) Hence obtain h(y), the probability density function of Y.Q.3 The probability density function for a continuous random variable X is fx(x) = {a + bx²; 0(b) A random variable X has a probability density function ГАx (6 — х)* ,0 sxs6 f(x) = |0, otherwise (i) Find the value of the constant A (ii) Calculate E(X), mode and the var(X)Recommended textbooks for youA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSONA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON