Question

For the following probability distribution, find X is at most 2...
X 0 1 2 3
P(x) .2 .1 .3 .4

I am totally unsure how to get the answer which = .6

Answer 1

you mean find the probability X is at most 2?

Answer 2

yes

Answer 3

.2+.1+.3

Answer 4

Why? Because you are adding everything before the 2?

Answer 5

at most 2 means 2 or less...add those probabilities

Answer 6

okay thanks

Answer 7

I have one more...you mind telling me what I am doing wrong?

Answer 8

never mind... i overlooked a decimal and it was wrong off answer