If the mean of three numbers is 20, what can be concluded about one of those numbers?

Must be 20

Cannot be determined

Must be more than 20

Must be less than 20

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Q1.

What is the mean of the numbers 4, 8, and 12?

Q2.

Which of the following represents a characteristic of the mean?

Q3.

If the mean of the data set {5, 10, 15, 20} is 12.5, which statement is true?

Q4.

What happens to the mean if a new number much larger than the current mean is added?