+0  
 
0
36
1
avatar

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.

 Aug 27, 2020
 #1
avatar
0

These are the products of the 10 numbers chosen:

 

(-8, -6, -4, -4, -3, -2, -2, -1, 1, 2, 2, 3, 3, 4, 4, 4, 6, 6, 8, 8, 9, 12, 12, 16) Total =>> 24

 

If you count the positive products, you get 16

 

So, the probability is: 16 / 24 = 2 / 3

 Aug 27, 2020

17 Online Users

avatar
avatar
avatar