mong all your Facebook friends 15 are people you have actually met 38 are people you know but have never actually met and the rest are people you do not know at all 2 of the friends you have met have posted on your Timeline 34 of the friends know but have never met have posted on your Timeline and 5 of the friends you do not now at all have still posted on your Timeline Fill in the missing probabilities as set up in the formula above to obtain the probability that someone who posts on your Timeline s someone you do not know at all 4 decimal places 7 0 Check Clear Help