STATISTICAL TECHNIQUES AND TOOLS
MEASURES OF VARIABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Find the mean of 3, 7, 9, 9 12.
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5
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6
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8
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4
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Explanation:
Detailed explanation-1: -mean is equal to the sum of items divided by number of items. So, the mean is 9 .
Detailed explanation-2: -Mean=total observationssum of observations=105+6+9+10+6+12+3+6+11+10=1078=7.
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