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سؤال 68

The values 2, 2, 30, 31 and 32 are recorded. Which average of this data set is fixed by the only repeated value and therefore sits far below the bulk of the data, and what is its value?

  1. The median, 30
  2. The mode, 2پاسخ درست
  3. The mean, 19.4
  4. The mode, 30

توضیح

The value 2 occurs twice while every other value occurs once, so the average that reports the most common value is 2, even though three of the five values are 30 or more. The mean of 19.4 also sits below most of the data, but it is produced by the total of all five values rather than by the repeat, so it is not the average that a single repeated pair decides.

ادامهٔ این آزمون

شروع تمرین
سؤال 68: The values 2, 2, 30, 31 and 32 are recorded. Which average… · Statistics and Probability · Questena