In the test data analysis exam, complex calculations are often one of the problems that plague the majority of candidates. We all know that the score of the test depends on the accuracy of the questions and the speed of doing the questions. The same is true for data analysis as a part of the line test, in fact, the data analysis questions are all multiple-choice questions, so the setting of the options largely determines our calculation method, so let's take you to see two examples:
Example 1].
1、a.3.44 b.33.5% c.3357.9 d.334.8
Looking at this set of options, we will find that the difference between the four options is very large, which can be called an order of magnitude difference, so in this case, we can get the correct answer by observing, the original formula is equivalent to more than 300 numbers divided by a number slightly larger than 1, and the result must be hundreds. However, only item d is matched in the options, so item d is chosen.
2、a.298 b.335 c.409 d.566
Observing this set of options, we will find that although the gap between the options is not as large as that of the first group of options, the gap is still large (the first digit is different), so in this case, we only need to estimate appropriately to get the result, and the first digit of the original result can be quotient to 3, and only option b of the options meets this characteristic, so choose item b.
3、a.304 b.335 c.398 d.566
Looking at this set of options, we can see that the gap between the options has narrowed further, so in this case, we need to do a little bit of math to arrive at the correct answer. Original 3728÷1.1=33x, so choose b.
4、a.331 b.335 c.339 d.366
Looking at this set of options, we will find that the difference between the options is very small, so in this case actuarial calculations are required, that is, the denominator does not change, and the numerator retains three significant digits. So the original 3728÷1.11,336, for the nearest item B.
Through such four sets of options, I believe you have already experienced the options before calculating, so let's look at a data analysis topic.
Example 2] In 2020, the business revenue of China's Internet and related service enterprises above designated size (hereinafter referred to as Internet enterprises) was 1,283.8 billion yuan, a year-on-year increase of 125%, the growth rate was lower than the same period last year 89 percentage points.
In 2020, the Internet business revenue in the eastern region was 1,122.7 billion yuan, a year-on-year increase of 148%, the growth rate fell 9 percentage points from the same period last year. The Internet business revenue in the central region was 448100 million yuan, a year-on-year increase of 34%, the growth rate was 53 compared with the same period last year1 percentage point. The income of Internet business in the western region was 497200 million yuan, a year-on-year increase of 69%, the growth rate fell by 15 from the same period last year2 percentage points. The Internet business revenue in the Northeast region was 47100 million yuan, a year-on-year increase of 91%。
Question: In 2020, the proportion of Internet business revenue in the eastern region of China in the country will be about ( ) compared with the previous year
a.Up 28 percentage points bDropped by 28 percentage points.
c.Up 18 percentage points dDropped by 18 percentage points.
Analysis] Answer C. Analyzing the problem and options, we can see the increase in the proportion of solving this problem. According to the materials, in 2020, the business income of China's Internet and related service enterprises above designated size (hereinafter referred to as Internet enterprises) will be 1,283.8 billion yuan, a year-on-year increase of 125%;The Internet business revenue in the eastern region was 1,122.7 billion yuan, a year-on-year increase of 148%。then what is sought.
Exclude options b and d. And 148%-12.%=2.3%, so it rose by less than 23 percentage points, choose C for this question.
Through such an example, we will find that for the calculation of the analysis formula of the line test data, it is important not to be anxious. Be sure to observe the setting of the options first, and then decide what method to use to calculate, so that you can do more with less.