Gestel die stogastiese veranderlike X het 'n diskrete uniforme verdeling: f(x) = {1/4 1 x = 1,2,3,4 anders Gestel 'n ewe

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Gestel Die Stogastiese Veranderlike X Het N Diskrete Uniforme Verdeling F X 1 4 1 X 1 2 3 4 Anders Gestel N Ewe 1 (50.56 KiB) Viewed 25 times

Gestel die stogastiese veranderlike X het 'n diskrete uniforme verdeling: f(x) = {1/4 1 x = 1,2,3,4 anders Gestel 'n ewekansige steekproef van n = 36 word geneem uit die verdeling. Bepaal die benaderde waarskynlikheidverdeling van Y = 7 + 1/2, asook E(Y) en V(Y). Kies die foutiewe bewering: Suppose that the random variable x has a discrete uniform distribution: x = 1,2,3,4 elsewhere Suppose that a random sample of n = 36 observations is selected from this distribution. Find the approximate probability distribution of Y = + 1/2. Also find E(Y) and V(Y). Choose the incorrect statement: f(x)={1/4 = A. E(Y) 3.0 B. E(X) 1/2 C. Y is ongeveer normaal verdeel met variansie waarde 5/144 Y is approximately normally distributed with variance 5/144 O D.V(Y) 5/144 O E. V(Y) V(X)