gs gs119 Data Exploration and Analysis - Basic Statistical Descriptions of Data - Quiz No.1
gs gs119 Data Science Quiz
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Question 1: Which of the following is a correct interpretation of a low standard deviation value for a data distribution?
Data is spread over a large range of values
Data points are close to the mean
Data points are close to the mode
Data points are close to the 25th percentile
Question 2: Which of the following is true about the data values 4, 7, 3, 9, 11, 17?
The variance and standard deviation are 20.13 and 10.32 respectively
The variance and standard deviation are 21.91 and 4.68 respectively
The variance and standard deviation are 17.54 and 2.74 respectively
The variance and standard deviation are 25.76 and 4.99 respectively
Question 4: A quantile plot is used for the description of _____
Bivariate data distribution
Univariate data distribution
Multivariate data distribution
Joint probability distribution
Question 5: Which of the following is not the preferred attribute type for quantile plots?
Nominal
Ordinal
Interval-scaled
Ratio-scaled
Question 6: The quantile-quantile plot, which is used for visual description of data, graphs the quantiles of a univariate distribution against the quantiles of a _____
Univariate distribution with numeric attributes
Multivariate distribution with numeric attributes
Multivariate distribution with ordinal attributes
Univariate distribution with binary attributes
Question 7: The histogram is also referred to as bar chart for attributes of type _____
Nominal
Interval-scaled
Ratio-scaled
Continuous
Question 8: Which of the following is not true about scatter plots?
It is used to identify relationship between attributes
It is used in the case of univariate distribution
It is used to identify outliers
It is used to identify clusters
Question 9: Which of the following is correlation is represented by the given scatter plot?
Positive correlation
Negative correlation
Null correlation
Perfect correlation
Question 10: Scatter plot extending to k attributes is called as _____
Scattergram
Scatter chart
Scatter matrix
Scatter diagram
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