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# help probability

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x is chosen at random between -1 and -4, and y is chosen at random between $$-4$$ and $$2$$. What is the probability that the product xy is positive.

Apr 14, 2022

#1
+115
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Hi gust this question was already solve just clic on this link

https://web2.0calc.com/questions/probability_20758

😎😎😎

Apr 14, 2022
#3
+579
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The three emojis with sunglasses look familiar somewhere...

I wonder where they are from...

Vinculum  Apr 14, 2022
#4
+2541
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In that question, the answerer leads to the right answer, but they fail to consider that the numbers chosen don't have to be an integer.

BuilderBoi  Apr 14, 2022
#5
+2541
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wdym vin, they're totally original...

BuilderBoi  Apr 14, 2022
edited by BuilderBoi  Apr 14, 2022
#6
+115
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Same as 😎😎

Kakashi  Apr 14, 2022
#2
+2541
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For the product to be positive, we need both x and y to be negative.

X is gauarnteed to be negative, and Y  has a $$2 \over 3$$ chance of being negative.

Thus, the probability is $$1 \times {2 \over 3} = \color{brown}\boxed{2 \over 3}$$

Apr 14, 2022