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13. A populain teadlasebalo 14 A population has distribution as the following. Let X, and X2 be independent and each have the
Determine the sampling distribution of X
b) Find the expected value of x. c) If the sample size is increased to 25, give the mean and variance of X.


NOX Probability 0.15 0.80 0.05
math   Statistics-And-Probability   
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Solution -- Griven data het xi & Xá be same population independent as the & Each have the distribution. XINN (1,02) { XQ NN((a) distribution of ². Variance : E(X2) – [Ecxoga in 10.992 • 10.81 1620 :0.19 Determine the sampling Here, R(xe a X9 som int(b) find the Expected value of x. 187 from the above calculation, Hence, the Expected value of 7 au: 0.90. (C) If the sample

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