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CBSE Questions for Class 11 Commerce Economics Presentation Of Data Quiz 3 - MCQExams.com
CBSE
Class 11 Commerce Economics
Presentation Of Data
Quiz 3
Calculate the number of songs made during the interval $$9-10$$.
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0%
$$14$$
0%
$$6$$
0%
$$8$$
0%
$$10$$
Explanation
By looking the graph, we get the number of songs made during the interval $$9-10$$ is $$8$$.
The frequency curve shows the number of students ages $$11$$ through $$17$$ in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.
How many mobile phones do $$13$$ year-old have?
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0%
$$10$$
0%
$$15$$
0%
$$20$$
0%
$$25$$
Explanation
$$13$$ year-old have $$15$$ mobile phones as shown in the graph.
The frequency curve shows temperatures over $$11$$ year in Bangalore. Use the graph to answer the questions below.
Which year had the lowest temperature?
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0%
$$2001$$
0%
$$2000$$
0%
$$2002$$
0%
$$2010$$
Explanation
The graph shows that the lowest temperature is in the year $$2000$$.
What is the difference in temperature between $$2003 $$ and $$2008$$?
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0%
$$25^{o}C$$
0%
$$30^{o}C$$
0%
$$15^{o}C$$
0%
$$5^{o}C$$
Explanation
In $$2003$$ temperature $$=$$ $$30^{o}C$$
In $$2008$$ temperature $$=$$ $$25^{o}C$$
So, the difference $$= 30 - 25 =$$ $$5^{o}C$$
About how many mobile phones do $$14\dfrac{1}{2}$$ year old have?
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0%
$$20$$
0%
$$30$$
0%
$$40$$
0%
$$50$$
Explanation
On looking the graph, we can say $$14\dfrac{1}{2}$$ year old have 40 mobile phones.
Find the highest temperature in Bangalore over $$11$$ years.
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0%
$$25^{o}C$$
0%
$$45^{o}C$$
0%
$$30^{o}C$$
0%
$$15^{o}C$$
Explanation
On looking the graph, we get the highest temperature as $$45^{o}C$$ in the year $$2002$$.
What is the range of temperatures in Bangalore over $$11$$ years?
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0%
$$20^{o}C$$
0%
$$10^{o}C$$
0%
$$33^{o}C$$
0%
$$45^{o}C$$
Explanation
Range of temperature = highest temperature $$-$$ lowest temperature
$$= 45 - 12 =$$ $$33^{o}C$$
So, the range of temperatures in Bangalore over $$11$$ years is $$33^{o}C$$.
How many years have temperature higher than $$35^{o}C$$?
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0%
$$2$$
0%
$$3$$
0%
$$4$$
0%
$$5$$
Explanation
Years $$2002$$ and $$2005$$ are having the temperature higher than $$35^{o}C$$.
Thus answer is $$2$$.
At what age do students have the greatest number of mobile phones?
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0%
$$14$$
0%
$$15$$
0%
$$16$$
0%
$$17$$
Explanation
At the age $$16$$, the students have the greatest number of mobile phones.
What was the least number of mobile phones at any age?
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0%
$$10$$
0%
$$15$$
0%
$$20$$
0%
$$25$$
Explanation
$$10$$ was the least number of mobile phones at any age.
What is the average numbers of vehicles manufactured by Company X over the given period ? (rounded off to nearest integer)
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0%
$$119333$$
0%
$$113666$$
0%
$$112778$$
0%
$$111223$$
Explanation
Average number of vehicles manufactured by Company X
$$\displaystyle =\frac { 1 }{ 6 } \times \left( 119000+99000+141000+78000+120000+159000 \right) $$
$$\displaystyle =119333$$
In which of the given years the number of candidates appeared from State P has maximum percentage of qualified candidates?
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0%
$$1997$$
0%
$$1998$$
0%
$$1999$$
0%
$$2001$$
Explanation
The percentages of candidates qualified to candidates appeared from State P during different years are:
For $$1997 \left (\dfrac {780}{6400}\times 100\right )$$% $$= 12.19$$%.
For $$1998 \left (\dfrac {1020}{8800}\times 100\right )$$% $$= 11.59$$%.
For $$1999 \left (\dfrac {890}{7800}\times 100\right )$$% $$= 11.41$$%.
For $$2000 \left (\dfrac {1010}{8750}\times 100\right )$$% $$= 11.54$$%.
For $$2001 \left (\dfrac {1250}{9750}\times 100\right )$$% $$= 12.82$$%
$$\therefore$$ Maximum percentage is for the year $$2001$$.
If the expenditure of Company $$Y$$ in $$1997$$ was $$Rs. 220$$ crores, what was its income in $$1997$$ ?
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0%
$$Rs. 312$$ crores
0%
$$Rs. 297$$ crores
0%
$$Rs. 283$$ crores
0%
$$Rs. 275$$ crores
Explanation
Profit percent of Company $$Y$$ in $$1997 = 35.$$
Let the income of Company $$Y$$ in $$1997$$ be $$Rs.
x$$
crores.
Then, $$\displaystyle 35=\frac { x-220 }{ 220 } \times 100\Rightarrow x=297$$
$$\displaystyle \therefore $$
Income of Company $$Y$$ in $$1997 = Rs. 297$$ crores.
In which of the following years, the difference between the productions of Companies X and Y was the maximum among the given years ?
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0%
1997
0%
1998
0%
1999
0%
2000
Explanation
The difference between the productions of Companies X and Y in various years are:
For 1997 (139000 - 119000) = 20000.
For 1998 (120000 - 99000) = 21000.
For 1999 (141000 - 100000) = 41000.
For 2000 (128000 - 78000) = 50000.
For 2001 (120000 - 107000) = 13000.
For 2002 (159000 - 148000) = 11000.
Clearly, maximum difference was in 2000.
What is the difference between the number of vehicles manufactured by Company Y in 2000 and 2001 ?
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0%
50000
0%
42000
0%
33000
0%
21000
Explanation
No. of vehicles manufactured by company Y in $$2000 = 128000$$
No. of vehicles manufactured by company Y in $$2001 = 107000$$
Required difference = (128000 - 107000) = 21000.
The following line graph gives the ratio of the amounts of imports by a company to the amount of exports from that company over the period from $$1995$$ to $$2001$$.
The imports were minimum proportionate to the exports of the company in the year ?
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0%
$$1995$$
0%
$$1996$$
0%
$$1997$$
0%
$$2000$$
Explanation
The imports are minimum proportionate to the exports implies that the ratio of the value of imports to exports has the minimum value.
Now, this ratio has a minimum value $$0.35$$ in $$1997$$
Hence, the imports are minimum proportionate to the exports in $$1997$$.
If the imports of the company in 1996 was Rs. 272 crores, the exports from the company in 1996 was ?
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0%
Rs. 370 crores
0%
Rs. 320 crores
0%
Rs. 280 crores
0%
Rs. 275 crores
Explanation
Ratio of imports to exports in the year 1996 = 0.85.
Let the exports in 1996 = Rs.
x
crores.
Then, $$\displaystyle \frac { 272 }{ x } =0.85\Rightarrow x=\frac { 272 }{ 0.85 } =320$$
$$\displaystyle \therefore $$
Exports in 1996 = Rs. 320 crores.
What was the minimum actual temperature during the week?
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0%
$$5$$
0%
$$10$$
0%
$$15$$
0%
$$20$$
Explanation
In the given graph, the straight line represents the actual temperature.
From the graph, we can observe that the minimum temperature was $$15^0C$$ which was observed on Thursday and Friday.
Brain and Jared live in the same apartment complex and they both bike to and from the work every day. The figure above shows a typical commute home for each of them. Based on the figure, which of the following statements is true?
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0%
It takes Brain longer to bike home because his work is farther away.
0%
It takes Jared longer to bike home because his work is farther away.
0%
Jared and Brain arrive home at the same time, so they must bike at about the same rate.
0%
Jared bikes a longer distance than Brain in the same amount of time, so Jared must bike at a faster rate.
Explanation
$$\Rightarrow$$ In the given figure we can see Jared's distance between workplace and the apartment is more than Brain's.
$$\Rightarrow$$ Jared takes the same time as Brain to travel that distance.
$$\therefore$$ Jared bikes a longer distance than Brain in the same amount of time, so Jared must bike at a faster rate.
What is the central angle of the sector corresponding to the expenditure incurred on Royalty?
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0%
$$15^0$$
0%
$$24^0$$
0%
$$54^0$$
0%
$$58^0$$
Explanation
Central angle corresponding to Royalty $$=(15\% \,of\,360)^0$$
$$=\left(\frac{15}{100}\times 360\right)^o$$
$$=54^o$$
In how many of the given years were the exports more than the imports ?
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0%
1
0%
2
0%
3
0%
4
Explanation
The exports are more than the imports imply that the ratio of value of imports to exports is less than 1.
Now, this ratio is less than 1 in years 1995, 1996, 1997 and 2000.
Thus, there are four such years.
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0%
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
0%
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
0%
Assertion is correct but Reason is incorrect
0%
Both Assertion and Reason are incorrect
Explanation
Grouping of items gives a sense of structure and meaning to the table. So, we should group together the similar items in data presentation for better interpretation of data. Thus both assertion and reason statements are correct and resaon explains the assertion very well.
Tabulations of data such as mean, standard deviation, mode, range, or frequency is done in a :
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0%
textual table
0%
statistical table
0%
numerical table
0%
any of the above
Explanation
Tabulations of data such as mean, standard deviation, mode, range, or frequency is done in a statistical table.
If the total number of candidates appeared in 1996 and 1997 together was 47400, then the total number of candidates qualified in these two years together was?
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0%
34700
0%
32100
0%
31500
0%
Data inadequate
Explanation
The total number of candidates qualified in 1996 and 1997 together, cannot be determined until we know at least, the number of candidates appeared in any one of the two years 1996 or 1997 or the percentage of candidates qualified to appeared in 1996 and 1997 together.
Hence, the data is inadequate.
What percentage of the total investment is coming from FII's and NRI's ?
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0%
$$33 \%$$
0%
$$11\%$$
0%
$$44 \%$$
0%
$$22 \%$$
Explanation
Total investment coming from NRI and FII is $$(33 + 11)\% = 44\%$$
The difference between the percentage of candidates qualified to appeared was maximum in which of the following pairs of years?
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0%
1994 and 1995
0%
1997 and 1998
0%
1998 and 1999
0%
1999 and 2000
Explanation
The differences between the percentages of candidates qualified to appeared for the give pairs of years are:
For 1994 and 1995 = 50 - 30 = 20.
For 1998 and 1999 = 80 - 80 = 0.
For 1994 and 1997 = 50 - 30 = 20.
For 1997 and 1998 = 80 - 50 = 30.
For 1999 and 2000 = 80 - 60 = 20.
Thus, the maximum difference is between the years 1997 and 1998.
What percent of total spending is spent on Tennis?
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0%
$$12\frac{1}{2}\%$$
0%
$$22\frac{1}{2}\%$$
0%
25%
0%
45%
Explanation
In the given pi-chart measure of central angle of tennis is $$45^o$$
Measure of all central angles is $$360^o$$
Let $$S$$ be the percentage of money spend on tennis
$$S= \left(\dfrac{45}{360}\times 100\right) \% \\=\dfrac{5}{40}\times 100\\= 12\dfrac{1}{2}$$
In which periodical exams there is a fall in percentage of marks as compared to the previous periodical exams ?
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0%
None
0%
June, 01
0%
Oct, 01
0%
Feb, 02
Explanation
As is clear from the graph, the total marks obtained in periodical exams, go on increasing. Since, the maximum marks for all the periodical exams are the same; it implies that the percentage of marks also goes on increasing.
Thus, in none of the periodical exams, there is a fall in percentage of marks compared to the previous exam.
Identify the best practice(s) of data tabulation from the following:
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0%
use of space and varying size and bold-faced fonts
0%
appropriate groupings
0%
title and header formatting
0%
All of the above
Explanation
The best practices of the data tabulation is the use of space and varying size and bold-faced fonts, appropriate groupings, title and header formatting.
In which year is the expenditure minimum?
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0%
$$2000$$
0%
$$1997$$
0%
$$1996$$
0%
Cannot be determined
Explanation
The line graph gives the comparison of percent profit for different years but the comparison of the expenditures is not possible without more data.
Therefore, the year with minimum expenditure cannot be determined.
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