Advantages and Disadvantages of Mean, Median, Mode.

Beschreibung

Quiz on the advantages and disadvantages of Mean Median and Mode in Data Science.
Vishakha Achmare
Quiz von Vishakha Achmare, aktualisiert more than 1 year ago
Vishakha Achmare
Erstellt von Vishakha Achmare vor mehr als 3 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
_______is called a data set containing all members of a specified group.
Antworten
  • Population
  • Sample

Frage 2

Frage
________ is a data set that contains a part, or a subset of a population.
Antworten
  • Population
  • Sample

Frage 3

Frage
Mean does not require sorting of data, as sorting of data is costly so it can be used for __________numeric data.
Antworten
  • Continuous
  • Discrete
  • Both

Frage 4

Frage
The mean cannot be calculated for ________ data, as the values cannot be summed.
Antworten
  • Categorical
  • Continuous

Frage 5

Frage
Median is __________ by the outliers and for a symmetric distribution, the mean _________median.
Antworten
  • Affected, Not Equal to
  • Unaffected, Equals to

Frage 6

Frage
In skewed data, the mean lies further towards the ______ then the median.
Antworten
  • Skew
  • Centre

Frage 7

Frage
Median is ________affected by outliers and skewed data.
Antworten
  • More
  • Less

Frage 8

Frage
Median cannot be identified for the _________ nominal data, as it cannot be logically ordered.
Antworten
  • Categorical
  • Ordinal

Frage 9

Frage
Is it possible for the data set to be multimodal (have more than one mode) ?
Antworten
  • True
  • False

Frage 10

Frage
Mode can be obtained for _____________ data. Can be graphically represented with a ____________.
Antworten
  • Both, Histogram
  • Numerical, Histogram
  • Categorical, Histogram

Frage 11

Frage
For floating data it will be difficult to calculate the _____.
Antworten
  • Mean
  • Mode

Frage 12

Frage
Range is ____________ to outliers and does not use all the observations in a data set.
Antworten
  • Very sensitive
  • Not sensitive

Frage 13

Frage
What can be used as a measure of variability if the extreme values are not being recorded exactly?
Antworten
  • Inter Quartile Range (IQR)
  • Range

Frage 14

Frage
IQR is ___________ by extreme values.
Antworten
  • Not affected
  • Affected

Frage 15

Frage
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.
Antworten
  • False
  • True

Frage 16

Frage
Variance gives added weight to outliers, the numbers that are far from the mean. Squaring these numbers can skew the data.
Antworten
  • False
  • True

Frage 17

Frage
Variance is not easily interpreted as we square the data, changing its dimensions from original one.
Antworten
  • True
  • False

Frage 18

Frage
Standard Deviation can be used to detect ___________.
Antworten
  • Mean
  • Skewness
  • Both
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