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Multiple choice

The mean of 14 terms in a series is 7.5. If two terms are excluded from the series, the mean increases by 1.5. Now, which of the following two numbers should be added to the series to get the original mean back?

  1. 0.5 and 0.25

  2. 1.5 and 0.5

  3. 1.5 and 1.25

  4. 1.5 and 1.5

  5. NA

Reveal answer Fill a bubble to check yourself
D Correct answer

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