Advantages and Disadvantages of Mean, Median, Mode.

Description

Quiz on the advantages and disadvantages of Mean Median and Mode in Data Science.
Vishakha Achmare
Quiz by Vishakha Achmare, updated more than 1 year ago
Vishakha Achmare
Created by Vishakha Achmare almost 4 years ago
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Resource summary

Question 1

Question
_______is called a data set containing all members of a specified group.
Answer
  • Population
  • Sample

Question 2

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

Question 3

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

Question 4

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

Question 5

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

Question 6

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

Question 7

Question
Median is ________affected by outliers and skewed data.
Answer
  • More
  • Less

Question 8

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

Question 9

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

Question 10

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

Question 11

Question
For floating data it will be difficult to calculate the _____.
Answer
  • Mean
  • Mode

Question 12

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

Question 13

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

Question 14

Question
IQR is ___________ by extreme values.
Answer
  • Not affected
  • Affected

Question 15

Question
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.
Answer
  • False
  • True

Question 16

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

Question 17

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

Question 18

Question
Standard Deviation can be used to detect ___________.
Answer
  • Mean
  • Skewness
  • Both
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