Probability density functions
10:02
Probability density functions
2011年2月20日
Khan AcademySal Khan
SOLVED:A function is a probability density function if it satisfies the following definition: ∫-∞^∞ f(t) d t=1. The probability that a random variable x lies between a and b is given by P(a ≤x ≤b)=∫a^b f(t) d tFind the probability that x is between 0 and 0.3. (Use the function defined in the preceding problem.) Use four-place decimal accuracy.
SOLVED:A function is a probability density function if it satisfies the f…
1 个月前
numerade.com
SOLVED:For some constant c, the random variable X has probability density function f(x)= c x^n 0x}, 0<x<1.
SOLVED:For some constant c, the random variable X has probability …
2 个月之前
numerade.com
SOLVED:Give a technique for simulating a random variable having the probability density function f(x)= (1)/(2)(x-2) 2 ≤x ≤3 (1)/(2)(2-(x)/(3)) 3<x ≤6 0 otherwise
SOLVED:Give a technique for simulating a random variable havi…
1 个月前
numerade.com
SOLVED:Find a constant C such that p is a probability density function on the given interval, and compute the probability indicated. p(x)=C x(4-x) on [0,4]; P(3 ≤X ≤4)
SOLVED:Find a constant C such that p is a probability density func…
2 个月之前
numerade.com
a probability density function of a random variable is defined. Find the expected value, the variance, and the standard deviation. Round answers to the nearest hundredth. f(x)=(x)/(8)-(1)/(4) ;[2,6] | Numerade
a probability density function of a random variable is defined. Find t…
2024年10月2日
numerade.com
SOLVED:A joint density function of the continuous random variables x and y is a function f(x, y) satisfying the following properties. (a) f(x, y) ≥0 for all (x, y) (b) ∫-∞^∞ ∫-∞^∞ f(x, y) d A=1 (c) P[(x, y) ∈R]=∫R ∫f(x, y) d A Show that the function is a joint density function and find the required probability. f(x, y)={ (1)/(27)(9-x-y), 0 ≤ x ≤ 3,3 ≤ y ≤ 6 0, elsewhere . P(0 ≤ x ≤ 1,4 ≤ y ≤ 6)
SOLVED:A joint density function of the continuous random variables …
1 个月前
numerade.com
SOLVED:Probability A joint density function of the continuous rando…
2 个月之前
numerade.com
7:47
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