Organisation of Data Test

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Organisation of Data Test - 11

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Weekly Quiz Competition

Question 1
1 / -0

The range of $$15, 14, x, 25, 30, 35$$ is $$23$$. Find the least possible value of $$x$$.

A
$$14$$

B
$$12$$

C
$$13$$

D
$$11$$

Solution

Let $$x$$ be the least value and $$35$$ be the Highest value.
Since, Range $$=$$ Highest value $$-$$ Lowest value
$$\Rightarrow 23 = 35 - x $$
$$\Rightarrow x = 12$$
$$\therefore $$ Option $$B$$ is correct.
Question 2
1 / -0

$$0 - 10, 10 - 20, 20 - 30 ,...$$ are the classes, then the lower boundary of the class $$20 - 30$$ is _____

A
$$10$$

B
$$10.5$$

C
$$20$$

D
$$20.5$$
Question 3
1 / -0

The following marks were obtained by the students in a test
$$81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62$$.
What is the range of the marks obtained?

A
$$9$$

B
$$17$$

C
$$27$$

D
$$33$$

Solution

The given observation are: $$81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62$$.
The minimum marks obtained are: $$62$$
Maximum marks obtained are: $$95$$
Thus, range $$=$$ maximum marks $$-$$ minimum marks $$= 95 - 62 = 33$$
Question 4
1 / -0

If $$1 - 5, 6 - 10, 11 - 15, ...$$ are the classes of a frequency distribution then the size of the class is _____

A
$$4$$

B
$$5$$

C
$$3$$

D
$$2.5$$

Solution

As the classes are of inclusive form,
Size of the class is $$=(Upper\ limit - Lower\ limit + 1 )$$
So, size of the class $$=( 5 - 1 + 1) = 5 $$
Question 5
1 / -0

Count the tally marks.

A
$$3$$

B
$$5$$

C
$$6$$

D
$$8$$
Question 6
1 / -0

Count the tally marks.

A
$$20$$

B
$$100$$

C
$$80$$

D
$$40$$

Solution

Tally marks are given by counting total number of vertical and slant lines.

There are $$20$$ bundles and each bundle consists of total $$5$$ lines.

Therefore, the total number of lines$$=20\times5=100$$

Hence, the total tally marks is $$100$$.
Question 7
1 / -0

Classification of data or attributes on the basis of either the presence or the absence of a qualitative characteristic is called __________.

A
spatial classification

B
chronological classification

C
qualitative classification

D
time series
Question 8
1 / -0

When the yield of wheat is classified based on different countries, it is called _______.

A
spatial classification

B
qualitative classification

C
chronological classification

D
none of the above
Question 9
1 / -0

What is count on friday?

A
$$5$$

B
$$6$$

C
$$12$$

D
$$8$$

Solution

Tally marks are given by counting total number of vertical and slant lines.
From the given table, we can observe that the count on Friday is $$5+5+2=12$$
Question 10
1 / -0

The classifications of theoretical distribution are ________.

A
normal and binomial distribution

B
binomial and poisson distribution

C
normal and poisson distribution

D
normal, binomial and poisson distribution

Solution

Normal distribution is a very common probability distribution i.e. informally called the bell curve.In binomial distribution, the outcome from one trial doesn't affect the outcome of successive trials while the poisson distribution is used to determine the probability of the number of events occuring over a specified time.

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Organisation of Data Test - 11

Result

Organisation of Data Test - 11

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SHARING IS CARING

Question 1

$$14$$

$$12$$

$$13$$

$$11$$

Solution

Question 2

$$10$$

$$10.5$$

$$20$$

$$20.5$$

Question 3

$$9$$

$$17$$

$$27$$

$$33$$

Solution

Question 4

$$4$$

$$5$$

$$3$$

$$2.5$$

Solution

Question 5

$$3$$

$$5$$

$$6$$

$$8$$

Question 6

$$20$$

$$100$$

$$80$$

$$40$$

Solution

Question 7

spatial classification

chronological classification

qualitative classification

time series

Question 8

spatial classification

qualitative classification

chronological classification

none of the above

Question 9

$$5$$

$$6$$

$$12$$

$$8$$

Solution

Question 10

normal and binomial distribution

binomial and poisson distribution

normal and poisson distribution

normal, binomial and poisson distribution

Solution

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