Questão 1
Questão
_______is called a data set containing all members of a specified group.
Questão 2
Questão
________ is a data set that contains a part, or a subset of a population.
Questão 3
Questão
Mean does not require sorting of data, as sorting of data is costly so it can be used for __________numeric data.
Questão 4
Questão
The mean cannot be calculated for ________ data, as the values cannot be summed.
Questão 5
Questão
Median is __________ by the outliers and for a symmetric distribution, the mean _________median.
Responda
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Affected, Not Equal to
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Unaffected, Equals to
Questão 6
Questão
In skewed data, the mean lies further towards the ______ then the median.
Questão 7
Questão
Median is ________affected by outliers and skewed data.
Questão 8
Questão
Median cannot be identified for the _________ nominal data, as it cannot be logically ordered.
Questão 9
Questão
Is it possible for the data set to be multimodal (have more than one mode) ?
Questão 10
Questão
Mode can be obtained for _____________ data.
Can be graphically represented with a ____________.
Responda
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Both, Histogram
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Numerical, Histogram
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Categorical, Histogram
Questão 11
Questão
For floating data it will be difficult to calculate the _____.
Questão 12
Questão
Range is ____________ to outliers and does not use all the observations in a data set.
Responda
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Very sensitive
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Not sensitive
Questão 13
Questão
What can be used as a measure of variability if the extreme values are not being recorded exactly?
Questão 14
Questão
IQR is ___________ by extreme values.
Questão 15
Questão
The advantage of variance is that it treats all deviations from the mean the same regardless of their direction. The squared deviations cannot sum to zero and give the appearance of no variability at all in the data.
Questão 16
Questão
Variance gives added weight to outliers, the numbers that are far from the mean. Squaring these numbers can skew the data.
Questão 17
Questão
Variance is not easily interpreted as we square the data, changing its dimensions from original one.
Questão 18
Questão
Standard Deviation can be used to detect ___________.