Mathematics, 16.03.2020 18:59 12539463
We know from class that two random variables independent of each other are also uncorrelated. However, the opposite is not true in general: two uncorrelated random variables can be dependent. Consider a pair of random variables (X, Y ) with joint pmf given by y p(x, y) 0 1 −1 1 3 0 x 0 0 1 3 1 1 3 0 Show that X and Y are uncorrelated, but not independent. (Justify every step of computation.)
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Mathematics, 21.06.2019 15:30
Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.
Answers: 1
Mathematics, 21.06.2019 17:30
How do you use the elimination method for this question? explain, because i really want to understand!
Answers: 1
We know from class that two random variables independent of each other are also uncorrelated. Howeve...
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