Question: Q49: Why the answer is E? If the average (arithmetic mean) of x, y, z, 5, and 7 is 8, which of the following must

Q49: Why the answer is E?

Q49: Why the answer is E? If the average (arithmetic mean) of

If the average (arithmetic mean) of x, y, z, 5, and 7 is 8, which of the following must be true? I. The median of the five numbers cannot be 5. II. At least one of x, y, and z is greater than 9. III. The range of the five numbers is 2 or more. I only II only III only 000 I and III II and III 49

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