What is the purpose of data analysis?

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Before we get to the point, let's look at an interesting case: Taobao consumption data show that the national network to buy the beauty of the bra average level reached the b;80% choice of "3/4 cups", this number is simple and some meaning, if the webmaster friends also open shop after sales bra, purchase to consider "B" and "3/4 cups" How much of the bra. From this case, we should understand that the main purpose of data analysis is to produce meaningful information after data analysis, because such information can help us to make judgments and choices.

Let me give you a real example: My company A department is to do training enrollment, they recently in the promotion of mass mailing marketing, their most recent work report as follows: "Collected 2000 or so valid e-mail address, has been issued, the arrival rate of the mail in about 90%, resulting in 3 consultation volume, It seems that the effect of mail marketing is not ideal. For such data statistics, I personally think that there is no meaning, no value.

We look at a case, Dangdang Guoqing announced in this year April 1 stop in Baidu Advertising, on June 30, Dangdang CEO Guoqing Public said, because of the need for Baidu's traffic and users, when with Baidu restart cooperation. Little brother here for you to analyze the data:

1, this June, from Alexa query Dangdang data, Dangdang upstream and downstream flow, Baidu occupies less than 12% of the total flow;

2, July 21, from Alexa query Dangdang data, Dangdang upstream and downstream site traffic, Baidu accounted for more than 16% of the flow;

3, online find Dangdang 2010 years ago 9 months of sales 1.57 billion, the average monthly sales of about 170 million yuan;

4, according to the previous data, calculated, if Dangdang from Baidu loss of 1% of traffic and users, the theoretical monthly sales will be reduced by about 2 million yuan;

5, according to this data calculation, Dangdang because does not cooperate with Baidu, and loss of about 4% flow, resulting in monthly sales loss of about 8 million, the whole year lost sales about 100 million yuan.

Some friends may say these numbers are inaccurate. I believe that Dangdang guoqing must have more detailed data analysis support, in order to let him have to announce continued cooperation with Baidu. Finally, again, the main purpose of data analysis is to produce meaningful information after data analysis, because such information can help us to make judgments and choices.

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