Data Handling Test

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Data Handling Test - 16

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Weekly Quiz Competition

Question 1
1 / -0

The _____ of a set of data is the middlemost number in the set.

A
mean

B
mode

C
range

D
median

Solution

The median of a set of data is the middlemost number in the set.
Example: $$3, 4, 5, 1, 1, 8, 10$$
So, first arrange the data in order.
So, $$1, 1, 3, 4, 5, 8, 10$$
The middle number is median $$= 4$$
Question 2
1 / -0

The age of $$13$$ school students are listed below. Find the median.
$$12, 9, 8, 13, 15, 14, 6, 18, 7, 11, 9, 14, 10$$

A
$$8$$

B
$$14$$

C
$$11$$

D
$$10$$

Solution

The median of a set of data is the middlemost number in the set.
So, first arrange the data in order.
$$6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 14, 15, 18$$
The median is $$11$$.
Question 3
1 / -0

The George family drove through $$11$$ states on their Spring vacation. Gasoline prices varied from state to state. Find the median gasoline price.
$$42, 54, 12, 89, 56, 75, 29, 13, 20, 11, 34$$

A
$$20$$

B
$$29$$

C
$$54$$

D
$$34$$

Solution

The median of a set of data is the middlemost number in the set.
So, first arrange the data in order.
$$11, 12, 13, 20, 29, 34, 42, 54, 56, 75, 89$$
The median gasoline price is $$34$$.
Question 4
1 / -0

Find mode of the following data.

A
$$480$$

B
$$360$$

C
$$240$$

D
$$120$$

Solution

Here, the highest frequency of receiving letters is $$80$$.
So, the mode is $$480$$.
Question 5
1 / -0

If $$i < m < n$$, then the median of the list $${i, m, n}$$ is ____.

A
$$i$$

B
$$n$$

C
$$m$$

D
$$a$$

Solution

The median of a set of data is the middlemost number in the set.
So, the median of the list $${i, m, n}$$ is $$m$$.
Question 6
1 / -0

The mode is the number that is repeated more _____ than any other.

A
rarely

B
often

C
infrequently

D
seldom

Solution

The mode is the number that is repeated more often than any other.
Example: In a group of data: $$11, 12, 12, 13, 14, 12, 15, 16, 12, 11$$
$$12$$ is the mode. (Because $$12$$ occurs more often than any other numbers.)
Question 7
1 / -0

The _____ is the value that appears most often in a set of data.

A
mean

B
median

C
mode

D
range

Solution

The mode is the value that appears most often in a set of data.
Example: In a group of data: $$2, 3, 4, 5, 5, 6, 6, 7, 8, 5$$
$$5$$ is the mode. (Since $$5$$ occurs $$3$$ three times in the given data)
Question 8
1 / -0

Tara's three bowling scores in a tournament were $$167, 178$$, and $$186$$. What was her average score for the tournament?

A
$$176$$

B
$$177$$

C
$$178$$

D
$$179$$

E
$$180$$

Solution

Three bowling scores of tournament are $$167, 178$$ and $$186$$.
Average score will be $$=\dfrac { 167+178+186 }{ 3 } =177$$
Question 9
1 / -0

The arithmatic mean of $$4,6,8$$ is

A
$$4$$

B
$$6$$

C
$$8$$

D
$$4.5$$

Solution

$$\Rightarrow$$ First adding numbers $$4,\, 6$$ and $$8$$ $$=4+6+8=18$$
$$\Rightarrow$$ We have number of terms $$3$$
$$\Rightarrow$$ $$Arithmetic\, mean=\dfrac{S}{N}=\dfrac{18}{3}=6$$
Question 10
1 / -0

The mean of a sample is:

A
Always equal to the mean of the population

B
Always smaller than the mean of the population

C
Computed by summing the data values and dividing the sum by $$(n - 1)$$

D
Computed by summing all the data values and dividing the sum by the number of items

Solution

$$Mean= \dfrac {Total\quad of\quad sample\quad values}{sample\quad size}$$
Answer-Option $$D$$.

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Re-Attempt Weekly Quiz Competition

Data Handling Test - 16

Result

Data Handling Test - 16

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SHARING IS CARING

Question 1

mean

mode

range

median

Solution

Question 2

$$8$$

$$14$$

$$11$$

$$10$$

Solution

Question 3

$$20$$

$$29$$

$$54$$

$$34$$

Solution

Question 4

$$480$$

$$360$$

$$240$$

$$120$$

Solution

Question 5

$$i$$

$$n$$

$$m$$

$$a$$

Solution

Question 6

rarely

often

infrequently

seldom

Solution

Question 7

mean

median

mode

range

Solution

Question 8

$$176$$

$$177$$

$$178$$

$$179$$

$$180$$

Solution

Question 9

$$4$$

$$6$$

$$8$$

$$4.5$$

Solution

Question 10

Always equal to the mean of the population

Always smaller than the mean of the population

Computed by summing the data values and dividing the sum by $$(n - 1)$$

Computed by summing all the data values and dividing the sum by the number of items

Solution

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