Test
Skewed Distributions in Data Science.
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Preguntas del test (16)
1Generally, data points cluster on one side more than the other. We call these types of distributions __________.
- ANormal Distributions
- BSkewed Distributions
2In Left Skewed Distribution data points cluster on the _____side of the distribution, then the tail would be longer on the ______side.
- ALeft, Right
- BRight, Left
- CCenter
- DNone
3What type of Distribution is this?
- ALeft Skewed
- BRight Skewed
4In Left Skewed Distribution the tail is longer in the _______ Direction and the Mode _______ Median _______ Mean.
- ANegative, Mode > Median > Mean
- BPositive, Mode < Median < Mean
5In Right Skewed Distribution data points cluster on the _____side of the distribution, then the tail would be longer on the ______side.
- ARIght, Left
- BLeft, Right
- CCenter
6Which type of Distribution is this?
- ARight Skewed
- BLeft SKewed
7In Right Skewed Distribution the tail is longer in the _______Direction and the Mode ___ Median___ Mean.
- ANegative, Mode > Median >Mean
- BPositive, Mode < Median < Mean
8A Density plot is a smoothed, _______ version of a histogram estimated from the data.
- Acontinuous
- BUncontinous
9Kernel density estimation (KDE) is a ________ curve (the kernel) is drawn at every individual data point and all of these curves are then added together to make a single smooth density estimation.
- AUncontinuous
- BContinuous
10If Quantiles are cut points dividing the range of a probability distribution into continuous intervals with equal probabilities or dividing the observations in a sample in the same way.
Then Answer the following.
2 quantile is known as the__________
4 quantile is known as the __________
10 quantile is known as the__________
100 quantile is known as the _________- APercentile, Median, Quartile, Decile.
- BQuartile, Decile, Percentile, Median
- CDecile, Percentile, Median, Quartile
- DMedian, Quartile, Decile, Percentile
11The Q-Q plot or quantile-quantile plot is a _______plot created by plotting two sets of quantiles against one another.
- Ascatter
- Bbox
12Skewness is also another measure to check for normality which tells us the amount and direction of the skewed data points. Generally for the value of Skewness:
If the value is less than -0.5, we consider the distribution to be _________skewed where data points cluster on the right side and the tails are longer on the left side of the distribution
Whereas if the value is greater than 0.5, we consider the distribution to ____________skewed where data points cluster on the left side and the tails are longer on the right side of the distribution
And finally, if the value is between -0.5 and 0.5, we consider the distribution to be approximately __________.
- APositively, Negatively, Unsymmetric
- BNegatively, Positively, Symmetric
13Another numerical measure to check for Normality is Kurtosis.
Kurtosis gives the information regarding tailedness which basically indicates the data distribution along the ________.- ACenter
- BTails
14For the symmetric type of distribution, the Kurtosis value will be close to_______. We call such types of distributions as Mesokurtic distribution. Its tails are similar to Gaussian Distribution (Normal).
- AOne
- BZero
15 In cases, where the value of K is greater than zero. Tail will be ______ and will have ________distribution. We call such types of distributions as Leptokurtic Distribution.
- AFatter, Longer
- BThinner, Shorter
16 In cases, where the value of "K" is less than zero. Tail will be ______ and will have ________distribution. We call such types of distributions as Platykurtic Distribution.
- AFatter, Longer
- BThinner, Short
Información
- Descripción
- Quiz on skewed distributions.
- Autor
- Vishakha Achmare
- Idioma
- English
- Visitas
- 227
- Etiquetas
- Valoración
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