What is the probability of a person being a fan of Cristiano Ronaldo?

That depends. Is the person chosen at random or is the person wearing a "Cristiano Ronaldo is the best player of all time" T-shirt?
 
I found the table quite confusing because I don't like football myself - and therefore I'm not represented in the table. And what about the people who support Manchester United, etc?

So there's some missing information in the question. Either:-

A) they missed a row and column labelled "other"
OR B) they should have said "the people in the survey, from which the probabilities have been determined, all had a favorite team in the following set {"Real Madrid", "Barcelona", "Liverpool" } and a favorite player in this set {"Ronaldo", "Messi"}

Can you determine the missing information, A or B, from the numbers given in the table?
 
Note that all the probabilities in the table add to 1.

This would mean that the people surveyed were asked "Out of these 3 teams, which is your favourite team?" and "Out of these 2 players, which is your favourite player?"

So to get the probabilty that a person chosen at random prefers Ronaldo, you would add the probabilities in the first column ie 0.4 + 0.02 + 0.05 = 0.47.

It is a very poorly worded question.
 
sharin.mostafiz said:
Solution: Pc,p= [MATH]Σ(0.4+0.02+0.05) [/MATH] = 0.47
Click to expand...
No, Pc,p\(\displaystyle \neq\)0.47

Why would you think that? Besides even if your equation is true you never answered the question by saying what the probabilty that a person chosen at random prefers Ronaldo.

The answer to your question is, the probability that a person chosen at random prefers Ronaldo= 0.47
 
Jomo said:
No, Pc,p\(\displaystyle \neq\)0.47

Why would you think that? Besides even if your equation is true you never answered the question by saying what the probabilty that a person chosen at random prefers Ronaldo.

The answer to your question is, the probability that a person chosen at random prefers Ronaldo= 0.47
Click to expand...


I declear "Pc,p" to chosen at random prefers Ronaldo.
I agreed with you.
 
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