Test
Advantages and Disadvantages of Mean, Median, Mode.
Preguntas del test (18)
1_______is called a data set containing all members of a specified group.
- APopulation
- BSample
2________ is a data set that contains a part, or a subset of a population.
- APopulation
- BSample
3Mean does not require sorting of data, as sorting of data is costly so it can be used for __________numeric data.
- AContinuous
- BDiscrete
- CBoth
4The mean cannot be calculated for ________ data, as the values cannot be summed.
- ACategorical
- BContinuous
5Median is __________ by the outliers and for a symmetric distribution, the mean _________median.
- AAffected, Not Equal to
- BUnaffected, Equals to
6In skewed data, the mean lies further towards the ______ then the median.
- ASkew
- BCentre
7Median is ________affected by outliers and skewed data.
- AMore
- BLess
8Median cannot be identified for the _________ nominal data, as it cannot be logically ordered.
- ACategorical
- BOrdinal
9Is it possible for the data set to be multimodal (have more than one mode) ?
- ATrue
- BFalse
10Mode can be obtained for _____________ data.
Can be graphically represented with a ____________.- ABoth, Histogram
- BNumerical, Histogram
- CCategorical, Histogram
11For floating data it will be difficult to calculate the _____.
- AMean
- BMode
12Range is ____________ to outliers and does not use all the observations in a data set.
- AVery sensitive
- BNot sensitive
13What can be used as a measure of variability if the extreme values are not being recorded exactly?
- AInter Quartile Range (IQR)
- BRange
14IQR is ___________ by extreme values.
- ANot affected
- BAffected
15The 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.
- AFalse
- BTrue
16Variance gives added weight to outliers, the numbers that are far from the mean. Squaring these numbers can skew the data.
- AFalse
- BTrue
17Variance is not easily interpreted as we square the data, changing its dimensions from original one.
- ATrue
- BFalse
18Standard Deviation can be used to detect ___________.
- AMean
- BSkewness
- CBoth
Información
- Descripción
- Quiz on the advantages and disadvantages of Mean Median and Mode in Data Science.
- Autor
- Vishakha Achmare
- Idioma
- English
- Visitas
- 61
- Etiquetas
- Valoración
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