Mathematics, 04.02.2022 14:10 seymani2
Let X1, X2, ..., Xnbe a random sample from population having probability density function
f(xi) =
1
√2πσ2
e−(
1
2σ
2 (xi−µ)2), −∞ < xi < ∞
(i) Using the characteristic function technique, determine the distribution of
Y =
n
X
i=1
Xi2
(ii) Using the moment generating function technique, determine the distribution of
the sample mean X
Answers: 3
Mathematics, 21.06.2019 17:50
On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.
Answers: 2
Let X1, X2, ..., Xnbe a random sample from population having probability density function
f(xi) =<...
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