METHODS OF DATA ANALYSIS
MEASURES OF CENTRAL TENDENCY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which set of data has a higher mean?BOB:1.3, 3.1, 4.1, 2.5, 2.2, 2.8MEGAN:5.5, 1.1, 1.2, 2.4, 3.8, 2.0, 1.9
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BOB > MEGAN
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BOB < MEGAN
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BOB=MEGAN
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None of the above
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Explanation:
Detailed explanation-1: -Answer. Bob: Megan: Therefore, Bob has the higher mean than Megan.
Detailed explanation-2: -The mean can be calculated only for numeric variables, no matter if they are discrete or continuous. It’s obtained by simply dividing the sum of all values in a data set by the number of values. The calculation can be done from raw data or for data aggregated in a frequency table.
Detailed explanation-3: -Mode: The most frequent number-that is, the number that occurs the highest number of times. Example: The mode of 4, 2, 4, 3, 2, 2 is 2 because it occurs three times, which is more than any other number.
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