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Answered Same Day Jul 24, 2022

Solution

Suraj answered on Jul 24 2022
79 Votes
We are given the data set of cars for year 2007 to 2012 and also projected data of the sales from 2012 to 2018.
The descriptive statistics for both the trends is given as follows:
Descriptive statistics table 1:
    Sales for Petrol and Diesel Cars
     
    Petrol
    Diesel
     
     
     
    Mean
    8
    17.83333
    Standard E
o
    2.175623
    5.558277
    Median
    8
    21
    Mode
    #N/A
    30
    Standard Deviation
    5.329165
    13.61494
    Sample Variance
    28.4
    185.3667
    Kurtosis
    -0.92988
    -2.41629
    Skewness
    -0.39247
    -0.34515
    Range
    14
    30
    Minimum
    0
    0
    Maximum
    14
    30
    Sum
    48
    107
    Count
    6
    6
Descriptive statistics table 2:
    Projected Sales for Petrol and Diesel Cars
    Petrol
    Petrol
    Diesel
     
     
     
    Mean
    -2.333333333
    15.83333333
    Standard E
o
    4.43220537
    2.70082292
    Median
    1.5
    16.5
    Mode
    2
    #N/A
    Standard Deviation
    10.85664159
    6.615638039
    Sample Variance
    117.8666667
    43.76666667
    Kurtosis
    5.13903214
    -0.903374713
    Skewness
    -2.201511204
    -0.036839482
    Range
    30
    18
    Minimum
    -24
    7
    Maximum
    6
    25
    Sum
    -14
    95
    Count
    6
    6
Two graphs are created to compare the data visually. Two...
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