ba notes- s8
DESCRIPTION
Business analystTRANSCRIPT
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Value taken by variable on right hand side is much higher than that on left hand side hence the data is skewed.
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Area is negatively skewed as median is greater than mean but it’s just a bit. Hence why skewness is also less. 25% data is above 1890.
In case of no of beds, 50% of data entries have less than 2 beds.
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The maximum
The extended lines are called whistles and any data ranging outside whistles is termed outlier. In this case 100th case is an outlier as seen from box plot.
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gRaph>>Chartbuilder>>Boxplots>>oneDBox>>put your variable on X axis.
To edit the chart double click on it.
Simple Box Plot
Put the categorical variable of X axis and scale variable on Y. Using this you can compare outliers in one neighborhood compared to others.
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Combination of Variable in plots >> Using Scatter plot.
Interpretation - As the price increases area does too. The relationship between both is linear.(Area changes proportionally when price changes.)
Scatter plots tell us :-
1. Approximate relationship between X & Y.2. 2. Whether linearity exists or not.
Scatterplot Matrix –
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Shows the relation between different variables in single view.
Analyze>>Coorelate>>Bivariate>>