6
Value taken by variable on right hand side is much higher than that on left hand side hence the data is skewed.

BA Notes- S8

Embed Size (px)

DESCRIPTION

Business analyst

Citation preview

Page 1: BA Notes- S8

Value taken by variable on right hand side is much higher than that on left hand side hence the data is skewed.

Page 2: BA Notes- S8

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.

Page 3: BA Notes- S8

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.

Page 4: BA Notes- S8

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.

Page 5: BA Notes- S8

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 –

Page 6: BA Notes- S8

Shows the relation between different variables in single view.

Analyze>>Coorelate>>Bivariate>>