Question

What does this mean ?? ( probability )

Answer 1

0*.21 + 1 *.36 + 2*.25 + 3*.18

Answer 2

If you need to know more about this, this is an "expected value" or "expectation" problem.

Answer 3

that should come up to 1.4 , right ?

Answer 4

@satellite73

Answer 5

Yes it gives 1.4

Answer 6

You can think of it as being as a weighted average if that helps.

Answer 7

@ katrinamarie0803 : did you want to answer all three of those questions or just to find the mean value?