Data Handling Test

Result

Data Handling Test - 23

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Weekly Quiz Competition

Question 1
1 / -0

In which experiment outcomes are not predictable?

A
sample

B
event

C
random

D
essential

Solution

In random experiment outcomes are not predictable.
Example: toss a coin, sample space $$= \{H, T\}$$
Question 2
1 / -0

In an experiment, all possible outcomes are

A
unknown

B
unfamiliar

C
known

D
unclear

Solution

In an experiment, all possible outcomes are known.
Example: tossing a coin, we will get possible outcome as either head or tail, which is known outcome.
Question 3
1 / -0

Directions For Questions

The following pie-chart shows the percentage distribution of the expenditure incurred in publishing a book. Study the pie-chart and the answer the questions based on it.

...view full instructions

What is the central angle of the sector corresponding to the expenditure incurred on Royalty?

A
$$15^0$$

B
$$24^0$$

C
$$54^0$$

D
$$58^0$$

Solution

Central angle corresponding to Royalty $$=(15\% \,of\,360)^0$$
$$=\left(\frac{15}{100}\times 360\right)^o$$
$$=54^o$$
Question 4
1 / -0

The histogram shows the birth weights of 100 new born babies.
How many babies weighed 8 lb or more?

A
$$23$$

B
$$45$$

C
$$30$$

D
$$22$$

Solution

Given graph shows birth weights of 100 new born babies

From the graph, the number of babies whose weight is $$8\ lb$$ or more is $$22+16+6+1=45$$
Question 5
1 / -0

Directions For Questions

The contribution given by the students of Std. $$7$$ for Teacher's day is shown in the pie graph given below:

...view full instructions

How much contribution was given by Jafar?

A
$$10\%$$

B
$$15\%$$

C
$$18\%$$

D
$$20\%$$

Solution

$$Students\, Name$$ $$Contribution$$
$$(in\,Rs.)$$
$$Matri$$ $$30$$
$$Dev$$ $$12$$
$$Jafar$$ $$18$$
$$Riya$$ $$24$$
$$Anuj$$ $$36$$
$$Total$$ $$120$$
$$\Rightarrow$$ Money contributed by jafar $$=Rs.18$$
$$\Rightarrow$$ Total money collected as fund is $$Rs.120.$$
$$\Rightarrow$$ $$\%$$ of money contributed by jafar $$=\dfrac{18}{120}\times 100$$
$$=15\%$$
Question 6
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Directions For Questions

The adjoining pie chart gives the expenditure on various items during a month for a family.(The numbers written around the pie chart tell us the angles made by each sector at the centre.)

...view full instructions

If the monthly income of the family is Rs 9000, what is the expenditure on rent?

A
Rs 2250

B
Rs 2000

C
Rs2050

D
Rs 2500

Solution

$$\Rightarrow$$ Expenditure on rent $$(in\,sector)=90^o$$
$$\Rightarrow$$ Family's monthly income $$=Rs.9000$$
$$\Rightarrow$$ Expenditure on rent $$=\dfrac{90^o}{360^o}\times Rs.9000$$
$$=\dfrac{1}{4}\times R.9000$$
$$=Rs.2250$$
Question 7
1 / -0

Directions For Questions

Based on the pie graph showing $$50$$ runs scored in cricket match, answer the following question:

...view full instructions

In which over maximum runs were scored?

A
First over

B
Third over

C
Fourth over

D
Fifth over

Solution

$$\Rightarrow$$ We have construct following table from given pie graph :
$$Overs$$ $$Runs\,scored$$
$$First$$ $$6$$
$$Second$$ $$0$$
$$Third$$ $$12$$
$$Fourth$$ $$14$$
$$Fifth$$ $$18$$
$$\Rightarrow$$ From above table we can see maximum runs scored in $$Fifth\, over$$ which is $$18.$$
Question 8
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Directions For Questions

The contribution given by the students of Std. $$7$$ for Teacher's day is shown in the pie graph given below:

...view full instructions

Who contributed the least fund?

A
Jafar

B
Dev

C
Riya

D
Matri

Solution

$$Students\, Name$$ $$Contribution$$
$$(in\,Rs.)$$
$$Matri$$ $$30$$
$$Dev$$ $$12$$
$$Jafar$$ $$18$$
$$Riya$$ $$24$$
$$Anuj$$ $$36$$
$$Total$$ $$120$$
$$\Rightarrow$$ From table we can see, $$Dev$$ contributed least fund which is $$Rs.12.$$
Question 9
1 / -0

Directions For Questions

Based on the pie graph showing $$50$$ runs scored in cricket match, answer the following question:

...view full instructions

How many runs were scored in the third over?

A
$$18\%$$

B
$$20\%$$

C
$$24\%$$

D
$$2\%$$

Solution

$$Overs$$ $$Runs\,scored$$
$$First$$ $$6$$
$$Second$$ $$0$$
$$Third$$ $$12$$
$$Fourth$$ $$14$$
$$Fifth$$ $$18$$
$$Total$$ $$50$$
$$\Rightarrow$$ Total runs scored in $$5$$ overs $$=50$$
$$\Rightarrow$$ Runs scored in third over $$=12$$
$$\Rightarrow$$ $$\%$$ of runs scored in third over $$=\dfrac{12}{50}\times 100=24\% $$
Question 10
1 / -0

The given pictograph shows the number of wall clocks sold by a company during a week. Each clock in the pictograph represents $$5$$ wall clocks. How many wall clocks were sold during the week?

A
$$101$$

B
$$110$$

C
$$120$$

D
$$115$$

Solution

Total number of wall clocks sold = $$20 + 25 + 15 + 35 + 10 + 5 = 110$$
Hence the correct answer is option B.