Provide an overview of the credit card customers by finding the descriptive statistics of each variable (each variable separately). In descriptive statistics, you may find the average, mode, median, variance, standard deviation, minimum and maximum values. Please keep in mind that the descriptive statistics metrics may not be meaningful for all types of data. For instance, calculating the average of account numbers will not make any sense or the mode and median may not explain details of the dataset and they may not be useful compared to other metrics. 

2. Upper management also asked you to compare the variability of each variable and provide an analysis about which variable has more variability. If you used a specific metric to compare the variabilities of each column, explain why you did use that method.

Account Number	x1 Annual Income ($1000)	x2 Household Size	x3 Years of Post-High School Education	x4 Hours Per Week Watching Television	x5 Age	x6 Gender (1:Female, 0:Male)	x7 Exceded Credit Limit in the Past 12 Months? (No:0, Yes:1)	y Annual Charges ($)
23313578	21.8	4.0	5.0	29.0	47	1	0	10023.52
14168784	65.5	7.0	3.0	46.0	60	1	0	11248.76
498076	54.2	3.0	2.0	18.0	47	0	0	6115.00
12286258	73.7	6.0	0.0	44.0	41	0	0	9785.55