IU x
0
1
P(x)
0.05
0.1
0.3
0.55
2
3
Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal place

add an image, and i will answer

step-by-step explanation:

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

the answer is 40.

proof: