T m t nhóm 10 k s g m 6 k s hóa và 4 k s đi n ch n ng u nhiên 4 k s (ch n 1 l n). G i X là s k s đi n đ c ch n.Ừ ộ ỹ ư ồ ỹ ư ỹ ư ệ ọ ẫ ỹ ư ọ ầ ọ ố ỹ ư ệ ượ ọa)Tính xác su t đ tronh 4 ký s đ c ch n có đúng 2 k s đi n. Ấ ể ư ượ ọ ỹ ư ệb) Tính EX và VarX. C) L p b ng phân ph i xác su t c a X

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

what graph

step-by-step explanation:

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: