Answer:
first one is correct................
Answer:
immune system
Step-by-step explanation:
I don't know exactly but I think the immune system
Using probability concepts, it is found that:
a) The missing value is 0.04.
b) The mean is of 0.37.
The distribution is given by:




Item a:
The sum of <u>all the probabilities has to be 1</u>, that is:

Thus:



The missing value is 0.04.
Item b:
The mean is given by the <u>sum of each outcome multiplied by it's probability</u>, thus:

The mean is of 0.37.
A similar problem is given at brainly.com/question/20709747
Answer:
-2y+x
Step-by-step explanation:
x-2y
-2y+x