Mains Level Data Interpretation with PDF for CET, Bank Exams, CLAT at Smartkeeda

Directions : Study the following bar chart carefully and answer the questions given beside.

To identify and treat people with COVID-19, numbers of tests were conducted on people. The bar chart below shows the data for four countries.
 
The bar chart gives information about: 
 
Numbers of tests in thousand for each one lakh population in a day,
 
Number of people as percentage, who were found positive to test, and
 
The number of people who were found positive and needed Ventilators, as they were critically affected due to the virus.
 
Data regarding number of Tests, Positive outcomes and Critical Patients who need ventilators in four countries
 
1
Find average number of tests per day per lakh in the four countries.
» Explain it
D
From common explanation, we have

total number of tests per day per lakh in the four countries = 14000 + 12000 + 18000 + 16000 = 60,000

Average =  60000  = 15000
4

Hence, option D is correct.

Common explanation : 

We evaluate number of patients who were found positive and number of patients who needed ventilators.

  Number of Tests/lakh/day Positive cases Number of patients for Ventilators
USA 14000 12% of 14000 = 1680 20% of 1680 = 336
Spain 12000 8% of 12000 = 960 12.5% of 960 = 120
Italy 18000 15% of 18000 = 2700 16% of 2700 = 432
China 16000 11% of 16000 = 1760 15% of 1760 = 264
2
Find the numbers of tests USA and Italy together conducted if 3012 lakh and 720 lakh people respectively were living in these two countries. 
» Explain it
E
From common explanation, we have that USA tests 14,000 for each 1 lakh, so for 3012 lakh, number of tests = (3012 lakh) × (14thousand/lakh) = 42,168 thousand.
 
Similarly, for Italy = (720lakh)  × (18 thousand/lakh) = 12,960 thousand

Total = 55128 thousand = 551.28 lakh

Hence, option E is correct.

Common explanation : 

We evaluate number of patients who were found positive and number of patients who needed ventilators.

  Number of Tests/lakh/day Positive cases Number of patients for Ventilators
USA 14000 12% of 14000 = 1680 20% of 1680 = 336
Spain 12000 8% of 12000 = 960 12.5% of 960 = 120
Italy 18000 15% of 18000 = 2700 16% of 2700 = 432
China 16000 11% of 16000 = 1760 15% of 1760 = 264
3
China tested 80000 people per day for 20 days. How many people were found positive in China in these 20 days?
» Explain it
B
From common explanation, we have

80,000 people are tested each day

Thus in 20 days, number of tests = 20 × 80 thousand = 1600 thousand

Number of people who have been found positive = 11% of 1600 thousand =  176 thousand = 176,000 

Hence, option B is correct.

Common explanation : 

We evaluate number of patients who were found positive and number of patients who needed ventilators.

  Number of Tests/lakh/day Positive cases Number of patients for Ventilators
USA 14000 12% of 14000 = 1680 20% of 1680 = 336
Spain 12000 8% of 12000 = 960 12.5% of 960 = 120
Italy 18000 15% of 18000 = 2700 16% of 2700 = 432
China 16000 11% of 16000 = 1760 15% of 1760 = 264
4
In Spain, 5760 were found positive on a particular day. Find how many tests were conducted that day.
» Explain it
C
From common explanation, we know that in Spain, out of each 12,000 tests, 960 were found positive.

Number of tests when 5760 were found positive

5760  × 12000 = 72,000
960

Hence, option C is correct.

Common explanation : 

We evaluate number of patients who were found positive and number of patients who needed ventilators.

  Number of Tests/lakh/day Positive cases Number of patients for Ventilators
USA 14000 12% of 14000 = 1680 20% of 1680 = 336
Spain 12000 8% of 12000 = 960 12.5% of 960 = 120
Italy 18000 15% of 18000 = 2700 16% of 2700 = 432
China 16000 11% of 16000 = 1760 15% of 1760 = 264
5
Find average number of ventilators for all the four countries together if 1 lakh people are tested in each of the four countries.
» Explain it
A
From common explanation, we have

Average number =  336 + 120 + 432 + 264  = 288
4

Hence, option A is correct.

Common explanation : 

We evaluate number of patients who were found positive and number of patients who needed ventilators.

  Number of Tests/lakh/day Positive cases Number of patients for Ventilators
USA 14000 12% of 14000 = 1680 20% of 1680 = 336
Spain 12000 8% of 12000 = 960 12.5% of 960 = 120
Italy 18000 15% of 18000 = 2700 16% of 2700 = 432
China 16000 11% of 16000 = 1760 15% of 1760 = 264

High Level DI for SBI PO, CLAT, SBI Clerk Mains, LIC AAO, CET


In this Data Interpretation for SBI PO 2021 we will discuss What is Data Interpretation, How it's important for Bank PO Pre Exams.

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What is Data Interpretation and how its useful for SBI PO PreRRB Clerk Pre 2021, SBI Clerk 2021, IBPS RRB  Scale I Pre 2021 etc

In our day-to-day life, data is reported in the newspapers, on television, and in magazines. The data involves business, government, sports and many other topics. It is represented in an organized fashion, making it easy to interpret what you hear and read in the media. Those set of problems is being asked in a different kind of form like Pie Chart di, Bar Chart di, Table Chart di, line chart di and info chart etc.

Now come back to the point data interpretation,  Data has to be well organized for it to be useful. This process of interpreting and analysing data to extract meaningful information from it is Data Interpretation. Solving DI problems involves the use of basic formulas and manipulation of numbers.

Data Interpretation is calculation-intensive. It consists of a myriad of graphs, charts and tables form which you have to glean and analyse data. The key to cracking this area is to quickly identify the key pieces of data that you require to work on the questions asked.

Problems in High Level Data Interpretation are probably the closest in resemblance to the kind of problems you will be dealing with as a manager. They test your decision-making ability and speed using the minimum possible data. They help you to draw conclusions from collected data, support decision making and contribute to the better process, product, and quality models.

Data Sufficiency problems involve testing your quantitative concepts. They usually take the form of a logical puzzle. Instead of solving a data sufficiency problem, all you need to do is determine if the given information is enough to solve the problem. To solve DI Questions for SBI PO Pre  Banking and Insurance Exams like RRB, IBPS, NABARD & RBI Grade B, NIACL, and LIC, you need to brush up your calculation skills; you need to perform calculations faster and accurately than others. Difficult Data interpretations should be solved within 10-12 minutes. The DI of moderate level should not consume more than 7-9 minutes of the time and easy DI's should be finished within 3.5-4 minutes.

In these, Data Interpretation Quizzes and PDF, you familiarized yourself with the key concepts and improved your problem-solving abilities. At Smartkeeda you will get Easy level data interpretation to High-level data interpretation at low cost. Practice and tests are important to optimize your preparation. First, take the quizzes regarding your exams and take a full mock test at Testzone to improve your problem-solving skills. Questions that have appeared in the previous SBI clerk exams are also a part of these quizzes. Go through them you can understand where the focus lies in an examination environment. The detailed solutions of the questions may provide some alternative strategies that can help you improve your speed and accuracy.

At Smartkeeda you can attempt Data Interpretation quizzes and download (DI) PDF for free for SBI PO Pre 2021 Exam.
 
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