An Investment company advertised that last year its clients, on average, made a

Question

An Investment company advertised that last year its clients, on average, made a profit of 7%. Assuring that average refers to the mean, which of the following claims must be true based on this information? Last year some of their clients made a profit of exactly 7%. Last year all of their clients made a profit of more than 4%. Two years age at least one of their clients made a profit of at least 7%. Last year more than half of their clients made a profit of at least 7%. Last year some of their clients mad a profit of at least 7%. None of the above statements is true.

Explanation / Answer

The answer is :

Option 5
Some of the customers made at least 7 % profit.
because if that be false, the mean would be below 7.

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