Question 13. Let X and Y be continuous random variables with the joint pdf fx.r(1,y) = xe-", 0 -1) is equal to (a) e-/4 (b) 2e- (c) e-2/4. (d) e-2/3 (e) none of the above.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.