Answer:
Step-by-step explanation:
In basic probability theory, AND means MULTIPLICATION and OR means ADDITION.
<em>We want to find probability of grey pair of shorts </em>AND<em> grey T-Shirt. So we need to </em><em>multiply</em><em> the individual probabilities.</em>
P(grey shorts) = 
(total 4 colors and 1 grey)
P(grey tshirt) = 
(total 3 colors and 1 grey)
P(grey shorts AND grey tshirt) = 
What are you trying to find out the length of
Answer: 17
Step-by-step explanation: ok so first to find the mean you add all the numbers then divide by how many numbers there is so basically 18 plus 15 plus 20 plus 15 then divide by 4 because there is 4 numbers and once you do that it is 17
https://mathbitsnotebook.com/Geometry/CongruentTriangles/CTtriangleMethods.html <-- this can help you
Maybe put them in order so I could possibly answer
