Descriptive Statistics Test 41

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Descriptive Statistics Test 41

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Weekly Quiz Competition

Question 1
1 / -0

The total expenditure made by an industry under different heads is presented by

A
Histogram

B
Line graph

C
Bar graph

D
None of the above
Question 2
1 / -0

Tabulation of data makes the presentation of facts and figures ___________.

A
more simplified

B
more understandable

C
Both a&b

D
It is lengthy and occupies space
Question 3
1 / -0

Choose the correct answer from the alternatives given :
Directions for questions 71 to 75 : Study the following graph carefully and answer the questions given below.
What is the average number of tyres of type A manufactured over the years?

A
23 lakhs

B
2.3 lakhs

C
30 lakhs

D
22 lakhs

Solution

Average number of tyres of type A
$$\displaystyle \frac{25 \, + \, 20 \, + \, 30 \, + \, 27.5 \, + \, 12.5}{5} \, = \, \frac{115}{5} \, = \, 23 \, lakh$$
Question 4
1 / -0

Study the following bar chart and answer the questions based on it.
The histogram below shows the marks of $$50$$ students in an examination. Examine the diagram and answer the questions.
If the minimum marks for passing is $$40$$, then what percentage of students have failed in the examination?

A
$$5$$%

B
$$10$$%

C
$$14$$%

D
$$28$$%

Solution

Number of students scoring marks less than $$40 = 5$$
Required percentage = $$\frac{5}{50} \, \times \, 100 \, \Rightarrow $$ $$10$$%
Question 5
1 / -0

Choose the correct answer from the alternatives given.
Study the graph and answer the questions.
What was the approximate percent drop in the sale of Pep-up in 1990 over its sale in 1989?

A
5.6%

B
14.3%

C
12.6%

D
16.6%

Solution

Required percentage drop $$\displaystyle \frac{35 \, - \, 30}{35} \, \times \, 100$$
= 14.28% $$\approx$$ 14.3%
Question 6
1 / -0

Choose the correct answer from the alternatives given :
Directions for questions 71 to 75 : Study the following graph carefully and answer the questions given below.
What was the percentage drop in the number of C type tyres manufactured from 2007 to 2008?

A
$$25\%$$

B
$$10\%$$

C
$$15\%$$

D
$$2.5\%$$

Solution

$$\Rightarrow$$ Percentage of C type tyres manufactured in $$2007=25\%$$
$$\Rightarrow$$ Percentage of C type tyres manufactured in $$2008=22.5\%$$
$$\Rightarrow$$ The percentage drop in the number of C type tyres manufactured from $$2007$$ to $$2008$$ $$=(25-22.5)\%$$
$$=2.5\%$$
Question 7
1 / -0

Choose the correct answer from the alternatives given :
Directions for questions 71 to 75 : Study the following graph carefully and answer the questions given below.
What was the difference between the number of B type tyres manufactured in 2008 and 2009?

A
1,00,000

B
20,00,000

C
10,00,000

D
None of these

Solution

Required difference between the number of B type of tyres manufactured in 2008 and 2009 = (35 - 27.5)
= 7.5 lakh = 7,50,000
Question 8
1 / -0

Choose the correct answers from the alternatives given.
Directions for question 71 to 73: Study the following bar chart and answer the questions based on it.
The histogram below shows the marks of 50 students in an examination. Examine the diagram and answer the questions.
If the minimum marks for getting scholarship is 80, how many students will get the scholarship?

A
11

B
13

C
12

D
10

Solution

Number of students who will get the scholarship
= 5 + 8 = 13a
Question 9
1 / -0

Choose the correct answer from the alternatives given :
Directions for questions 71 to 75: The graph shows the production of wheat in different years of a particular State
The year in which the production reached maximum is

A
$$1995$$

B
$$1997$$

C
$$1999$$

D
$$2000$$

Solution

The production of wheat reached maximum in 1999 (observed clearly from the bar graph).
Question 10
1 / -0

The graph shows the production of wheat in different years of a particular State: For which year the gain or drop in the production of wheat the maximum over the previous year ?

A
$$1996$$

B
$$2001$$

C
Both (a) and (b)

D
None of these

Solution

From bar graph we are going to form frequency table:
$$Years$$ $$Production\,of\,wheat\,in\,quintals$$
$$1995$$ $$1200$$
$$1996$$ $$600$$
$$1997$$ $$500$$
$$1998$$ $$1000$$
$$1999$$ $$1500$$
$$2000$$ $$1300$$
$$2001$$ $$600$$
$$\Rightarrow$$ From above table we can see, in $$2001$$ there is maximum drop in the production of wheat from $$1300$$ quintals to $$600$$ quintals. i.e. $$700$$ quintals drop in wheat production.
$$\therefore$$ The year drop in the production of wheat the maximum over the previous year $$=2001$$

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Re-Attempt Weekly Quiz Competition

$$Years$$	$$Production\,of\,wheat\,in\,quintals$$
$$1995$$	$$1200$$
$$1996$$	$$600$$
$$1997$$	$$500$$
$$1998$$	$$1000$$
$$1999$$	$$1500$$
$$2000$$	$$1300$$
$$2001$$	$$600$$

Descriptive Statistics Test 41

Result

Descriptive Statistics Test 41

Score

-

Rank

-

SHARING IS CARING

Question 1

Histogram

Line graph

Bar graph

None of the above

Question 2

more simplified

more understandable

Both a&b

It is lengthy and occupies space

Question 3

23 lakhs

2.3 lakhs

30 lakhs

22 lakhs

Solution

Question 4

$$5$$%

$$10$$%

$$14$$%

$$28$$%

Solution

Question 5

5.6%

14.3%

12.6%

16.6%

Solution

Question 6

$$25\%$$

$$10\%$$

$$15\%$$

$$2.5\%$$

Solution

Question 7

1,00,000

20,00,000

10,00,000

None of these

Solution

Question 8

11

13

12

10

Solution

Question 9

$$1995$$

$$1997$$

$$1999$$

$$2000$$

Solution

Question 10

$$1996$$

$$2001$$

Both (a) and (b)

None of these

Solution

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