DI table

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Data Interpretation Table Charts 7

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

The results of half yearly and annual examinations are shown in the table given below.

Result No. of Students
Section A Section B Section C Section D
Students failed in both Exams 28 23 17 27
Students failed in half-yearly but passed in Annual Exams 14 12 8 13
Students passed in half-yearly but failed in Annual Exams 6 17 9 15
Students passed in both Exams 64 55 46 76
If the number of students passing an examination be considered a criteria for comparision of difficulty level of two examinations, which of the following statements is true in this context?
A
Half yearly examinations were more difficult.
B
Annual examinations were more difficult.
C
Both the examinations had almost the same difficulty level.
D
The two examinations cannot be compared for difficulty level.
Question 1 Explanation: 

Number of students who passed half-yearly exams in the school

= (Number of students passed in half-yearly but failed in annual exams) + (Number of students passed in both exams)

= (6 + 17 + 9 + 15) + (64 + 55 + 46 + 76)

= 288.

Also, Number of students who passed annual exams in the school

= (Number of students failed in half-yearly but passed in annual exams) + (Number of students passed in both exams)

= (14 + 12 + 8 + 13) + (64 + 55 + 46 + 76)

= 288.

Since, the number of students passed in half-yearly = the number of students passed in annual exams. Therefore, it can be inferred that both the examinations had almost the same difficulty level.

Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many students are there in Class IX in the school?
A
336
B
189
C
335
D
430
Question 2 Explanation: 
Since the classification of the students on the basis of their results and sections form independent groups, so the total number of students in the class:

= (28 + 23 + 17 + 27 + 14 + 12 + 8 + 13 + 6 + 17 + 9 + 15 + 64 + 55 + 46 + 76)

= 430.

Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which section has the maximum pass percentage in at least one of the two examinations?
A
A Section
B
B Section
C
C Section
D
D Section
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which section has the maximum success rate in annual examination?
A
A Section
B
B Section
C
C Section
D
D Section
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which section has the minimum failure rate in half yearly examination?
A
A section
B
B section
C
C section
D
D section
There are 5 questions to complete.

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