Discussion

Explanation:

Let us tabulate the information given in the bar graph depicting the number of countries against the happiness index score for each attribute. 

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There are 2 possibilities for Amda and Calla’s scores. Since each of them has identical scores for each of the 3 attributes, we need a pair of identical scores for each of the 3 attributes.

Zooma has a total score of 17 and is hence in the category of Happy. Now each of the 3 countries in the category of Happy has the highest score for exactly one parameter.

There are 2 ways for Zooma to get a score of 17. Either Zooma gets scores of 6, 6 and 5 in attiributes C, S and F respectively or gets scores of 7 in F, 6 in S and 4 in C.

In either case, Zooma gets a score of 6 in S.

Answer: 6

 

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