In the civil service test of civil servants and public institutions, there is a must-get score module, that is, the data analysis . Unlike the language understanding module, no matter how strong you are, you will have times to do questions. However, data analysis is the most certain module, and if you master the skills, you can get more than 90% or even 100% of the score! ! !
Without further ado, let’s take a look at the common "pits" in data analysis to avoid making mistakes ( has been shared in the last article, don’t miss it ~)
real test questions "pits": ( Learning objectives: only share one question, let you learn one type of question, don’t ask the sea of questions )
From January to February 2017, the national shipbuilding was completed by 9.36 million dwt, a year-on-year increase of 123%; it received 2.21 million dwts for new ship orders, a year-on-year increase of 133%. html At the end of February, handheld ship orders were 92.07 million dwt, a year-on-year decrease of 22.6%, a decrease of 7.6% from the end of 2016.
2016 National Handheld ship Order 1Reduced by 16.2% from the end of February of the same year ( )
1)
2) Reduce 2.2%
3) Increase 16.2%
4) Increase 2.2%
Question disassembly:
There are three time points: late February 2016, late February 2016, and late February 2017
According to the three growth rates corresponding to the question stem,
I. At the end of February 2017, the year-on-year decrease of 22.6% compared with the end of February 2016, the year-on-year decrease of 7.6% compared with the end of February 2016, the year-on-year decrease of 7.6% compared with the end of February 2016. Looking for the end of February 2016, the year-on-year decrease of 2016, the year-on-year decrease of 2016? ? ?
Conventional solution:
016 National handheld ship order: 9207/(1-7.6%)
016 National handheld ship order: 9207/(1-22.6%)
can be calculated according to the formula: A/B-1. obviously has a lot of calculations in this way.
quick solution:
Have you found it? This is actually giving 3 time points. The growth rate of 2 of them is known. Find the third one! ! ! . This question gives the total growth rate of -22.6%, one of which is -7.6%. Combined with the characteristics of the interval growth rate, the other is also a decrease, and its absolute value is slightly greater than 15% (22.6%-7.6%). You can choose A
Knowledge point expansion: The test point is actually the application of the interval growth rate inverse operation ! ! ! Have you learned it?
Recently, there have been frequent sharing of the preparation of civil examinations for public examinations (not limited to practical tests). You can pay attention. In order to give everyone energy to read in their spare time, they only share 1 to 2 questions in detail each time. Friends who are preparing for the exam can also read the previous article sharing~
Summary of the experience of public institutions and civil servants in preparation for the exams. Previous article sharing :
2023 National exam is approaching! Is the full set of high-quality score techniques for condensed 105 pages coming? Watch it quickly without
! Suitable for the 2023 national examination, provincial examination and professional examination! Skills for high scores in the field of civil servants and public institutions (I) Collection of spare
I am " Dealing with data ", and recently summarized the public basics and and ml2, help you get ashore as soon as possible~
took a lot of time, and I think it is useful , Follow for a while~ Welcome to like, collect, forward ~
