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M.C.Q. [1 Marks Each]

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MCQ 11 Mark
The Arithmetic Mean of the following data is.
  • A
    $20$
  • $25$
  • C
    $100$
  • D
    $125$
Answer
Correct option: B.
$25$

$\text{Arithmetic Mean}=\frac{10+20+30+40}{4}=\frac{100}{4}=25$

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MCQ 21 Mark
In which class is the number of students $500?$
  • $VIII$
  • B
    $VII$
  • C
    $IX$
  • D
    $X$
Answer
Correct option: A.
$VIII$
$500 \rightarrow VIII$
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MCQ 31 Mark
What is the number of houses represented by the figure $⌅⌅⌅⌅$ if each symbol represents 15 houses?
  • $60$
  • B
    $20$
  • C
    $15$
  • D
    $40$
Answer
Correct option: A.
$60$
$60$
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MCQ 41 Mark
A pictorial representation of data is called:
  • Pictograph
  • B
    Different graph
  • C
    Attractive graph
  • D
    None
Answer
Correct option: A.
Pictograph

Among different type of data representations possible, the representation which consists of pictures
i.e A pictorial representation of data is called Pictograph.

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MCQ 51 Mark
Direction: Answer the following set of questions by reading the pictograph given.

What is the number of $TV$ sets sold in the year 1980?
  • $3000$
  • B
    $1500$
  • C
    $1250$
  • D
    $2000$
Answer
Correct option: A.
$3000$
$3000$
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MCQ 61 Mark
The number of trees in different parks of a city are $33, 38, 48, 33, 34, 34, 33$ and $24$. The mode of this data is.
  • A
    $24$
  • B
    $34$
  • $33$
  • D
    $48$
Answer
Correct option: C.
$33$
The number of trees in different parks of a city are $33, 38, 48, 33, 34, 34, 33$ and $24.$
Since $33$ occurs the hightest time
i.e. $3$ times.
So Mode $= 33$
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MCQ 81 Mark
The choices of the fruits of $42$ students in a class are as follows:
$A, O, B, M, A, G, B, G, A, G, B, M. A, O, M, A, B, G, M, B, A, O, M, O, G, B, O, M, G, A, A, B, M, O, M, G, B, A, M, O, M, O$
where $A, B, G, M$, and $O$ stands for Apple, Banana, Grapes,
Mango and Orange respectively.
Which fruit is liked by most of the students?
  • A
    $O$
  • B
    $G$
  • $M$
  • D
    $A$
Answer
Correct option: C.
$M$

Number of A appearing in list are $9$ Number of $B$ appearing in list are $8$ Number of $G$ appearing in
list are $7$ Number of $M$ appearing in list are $10$ Number of $O$ appearing in list are $8$
So, $M$ appeared most, a and $M$ stands for Mango. So, Mango $M$ is the fruit which is liked by most student

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MCQ 91 Mark
$\text{THE ARITHMETIC MEAN OF X ANDY IS 40. IF Z = 30, THEN THE SUM OF X, Y AND Z IS.}$
  • A
    $70$
  • B
    $100$
  • $110$
  • D
    $120$
Answer
Correct option: C.
$110$

Given, arithmetic mean of $x$ and $\text{y}=\frac{\text{x+y}}{2}=40$
$\Rightarrow x + y = 80$ And given,$ z = 30$
$\therefore$ The the sumofx, $y$ and $z$ is $110$

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MCQ 101 Mark
Khilona earned scores of $97, 73$ and $88$ respectively in her first three exminations . If she scored $80$ in the fourth examination, then her average score will be:
  • A
    increased by $1$
  • B
    increased by $1.5$
  • C
    decreased by $1$
  • decreased by $1.5$
Answer
Correct option: D.
decreased by $1.5$

Khilona earned scores of $97, 73$ and $88$ respectively in her first three examinations.
Average score of Khilona in first three exam $= \frac{(97 + 73 + 88)}{3} = \frac{258}{3} = 86$
Now she scored $80$ in the fourth examination.
Now Average score of Khilona in all four exams $= \frac{(97 + 73 + 88 + 80)}{4} = \frac{338}4 = 84.5$
So there is decrement in her average score
Now decresment in average score $= 86 - 84.5 = 1.5$

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MCQ 111 Mark
A _____ is a collection of numbers gathered to give some information.
  • A
    Frequency
  • Data
  • C
    Tally mark
  • D
    None of these
Answer
Correct option: B.
Data
Data
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MCQ 121 Mark
How many employees does $ \square$ represent?
  • A
    $500$
  • $600$
  • C
    $700$
  • D
    $800$
Answer
Correct option: B.
$600$

$\Rightarrow $ Number of government employees in Delhi $= 4200$
$\Rightarrow $ Number of $\square$ represent government employees in Delhi $= 7$
$\Rightarrow $ Number of employee $\square$ represents $=\frac{4200}{7}=600$

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MCQ 141 Mark
Which measures of central tendency get affected if the extreme observations on both the ends of a data arranged in descending order are removed?
  • Mean and mode
  • B
    Mean and Median
  • C
    Mode and Median
  • D
    Mean, Median and Mode
Answer
Correct option: A.
Mean and mode

Mean and Mode get affected if the extreme observations on both the ends of a data arranged in descending order are removed.
This is because mean and mode consider all values of the data, whereas median considers only middle values of the data.

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MCQ 151 Mark
The ________ of each bar gives the required information.
  • A
    Breadth
  • B
    Height
  • Length
  • D
    None of these
Answer
Correct option: C.
Length
Length
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MCQ 181 Mark
A symbol is used to represent $10$ flowers. Number of symbols to be drawn to show 60 flowers is ___
  • $6$
  • B
    $12$
  • C
    $11$
  • D
    $10$
Answer
Correct option: A.
$6$

A symbol is used to represent $10$ flowers
Symbol use to drawn $60$ flowers $=\frac{60}{10}=6$

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MCQ 201 Mark
On which day were the maximum number of students present?
  • A
    Monday
  • Thursday
  • C
    Tuesday
  • D
    Saturday.
Answer
Correct option: B.
Thursday
Thursday
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MCQ 211 Mark
The marks (out of $10$) obtained by $28$ students in a Mathematics test are listed as below:
$8, 1, 2, 6, 5, 5, 5, 0, 1, 9, 7, 8, 0, 5, 8, 3, 0, 8, 10, 10, 3, 4, 8, 7, 8, 9, 2, 0$
The number of students who obtained marks more than or equal to $5$, is:
  • A
    $13$
  • B
    $15$
  • C
    $16$
  • $17$
Answer
Correct option: D.
$17$
In order to find out how many students obtained marks more than or equal to $5$, we will arrange the given data in a table, using tally marks.
Marks in Mathematics test Tally marks Number of students

= The number of students who obtained marks more than or equal to $5= 4 + 1 + 2 + 6 + 2 + 2$
$= 17$
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MCQ 221 Mark
What is a graph drawn using vertical bars called?
  • A bar graph
  • B
    A line graph
  • C
    A pictograph
  • D
    A pie graph
Answer
Correct option: A.
A bar graph
A bar graph
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MCQ 231 Mark
Numbers $1$ to $10$ are written on ten separates slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking in to it .What is the probability of getting a number $6?$
  • A
    $1$
  • B
    $0$
  • $\frac{1}{10}$
  • D
    $\frac{1}{2}$
Answer
Correct option: C.
$\frac{1}{10}$
$\frac{1}{10}$
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MCQ 241 Mark
What is the total number of seats won by party $C$ and party $D?$
  • A
    $10$
  • B
    $20$
  • C
    $30$
  • $40$
Answer
Correct option: D.
$40$

$20 + 20 = 40$

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MCQ 251 Mark
Pictorial representation of date is called:
  • A
    Bar Graph
  • B
    Histogram
  • Pictograph
  • D
    None of these
Answer
Correct option: C.
Pictograph

The information presented through pictures or symbols of different objects is called the pictorial representation of data.
The pictures of different objects are used to represent different information and thus such pictorial data are called pictographs.

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MCQ 261 Mark
There are $2$ Red, $3$ Blue and $5$ Black balls in a bag. A ball is drawn from the bag without looking in to the bag. What is the probability of getting a non-red ball?
  • A
    $\frac{3}{5}$
  • $\frac{4}{5}$
  • C
    $\frac{2}{5}$
  • D
    $\text{None of these}$
Answer
Correct option: B.
$\frac{4}{5}$
$\frac{4}{5}$
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MCQ 281 Mark
Which of the following is the probability of an impossible event?
  • A
    $0$
  • B
    $1$
  • $2$
  • D
    None of these
Answer
Correct option: C.
$2$
$2$
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MCQ 291 Mark
In which classes is the number of students are same?
  • $IX,X$
  • B
    $VI,VII$
  • C
    $VIII,IX$
  • D
    $VI,X$
Answer
Correct option: A.
$IX,X$
$IX,X$
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MCQ 301 Mark
Which observation in the following data has maximum frequency?
$1, 1, 2, 4, 3, 2, 1, 2, 2, 4$
  • A
    $4$
  • B
    $3$
  • C
    $1$
  • $2$
Answer
Correct option: D.
$2$
$2$
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MCQ 311 Mark
The following bar graph represents the amount of oil purchased by the Gov~mment from $1998-2005$. The year In which maximum off purchased was.
  • A
    $1998$
  • B
    $2001$
  • C
    $2003$
  • $2005$
Answer
Correct option: D.
$2005$
$2005$
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MCQ 321 Mark
$\Uparrow\ \Uparrow\ \Uparrow \ \Uparrow$ Number represented by figure is ____, if each symbol represents 5 houses.
  • A
    $4$
  • $20$
  • C
    $5$
  • D
    $40$
Answer
Correct option: B.
$20$

One $\Uparrow$ represents $5$ houses. There are total $4$ such symbols
$\therefore$ $\Uparrow\ \Uparrow\ \Uparrow \ \Uparrow$ represents $4 \times 5 = 20$

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MCQ 331 Mark
A symbol is used to represent $100$ flowers. How many symbols are to be drawn to show $800$ flowers?
  • $8$
  • B
    $12$
  • C
    $10$
  • D
    $80$
Answer
Correct option: A.
$8$
$8$
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MCQ 341 Mark
Probability of picking up an ace card from a set of playing card is:
  • $\frac{1}{13}$
  • B
    $\frac{2}{13}$
  • C
    $\frac{3}{13}$
  • D
    $\frac{4}{13}$
Answer
Correct option: A.
$\frac{1}{13}$

Total number of card in the set of playing card $= 52$
Total number ace in the set of playing card $= 4$
So, probability of picking up an ace card from a set of playing card $= \frac{4}{52} = \frac{1}{13}$

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MCQ 351 Mark
Mean of the first $5$ odd numbers is.
  • A
    $1$
  • B
    $3$
  • $5$
  • D
    $7$
Answer
Correct option: C.
$5$

First 5 odd numbers $= 1, 3, 5, 7, 9$
Mean $=\frac{\big(1+3+5+7+9\big)}{5}=\frac{25}{5}=5$

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MCQ 361 Mark
There are $2$ Red, $3$ Blue and $5$ Black balls in a bag. A ball is drawn from the bag without looking in to the bag. What is the probability of getting a red ball?
  • A
    $0$
  • B
    $1$
  • C
    $\frac{1}{10}$
  • $\frac{1}{2}$
Answer
Correct option: D.
$\frac{1}{2}$
$\frac{1}{2}$
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MCQ 371 Mark
If the heights of eight students are (in cm) $160, 154, 158, 159, 161, 162, 159$ and $164$, then the range of height is.
  • A
    $12$
  • B
    $11$
  • $10$
  • D
    $9$
Answer
Correct option: C.
$10$

We know that, Range = highest value - lowest value
Thus, range of height $= 164 - 154 = 10$

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MCQ 381 Mark
A cricketer scores the following runs in eight innings:
$58, 76, 40, 35, 46, 45, 0, 100$
What will be their mean score?
  • A
    $400$
  • $50$
  • C
    $200$
  • D
    $100$
Answer
Correct option: B.
$50$
$50$
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MCQ 391 Mark
How many more letters were collected on Friday than on Wednesday?
  • A
    $20$
  • B
    $30$
  • $40$
  • D
    $50$
Answer
Correct option: C.
$40$
$40$
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MCQ 401 Mark
In the following bar graph, the number of people opting for french toast as their favourite breakfast food are:
  • A
    $2$
  • $3$
  • C
    $6$
  • D
    $7$
Answer
Correct option: B.
$3$

There are three people who otoose french toast as their favolr!te breakfast food.

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MCQ 411 Mark
Using tally marks, which one of the following represents the number eight:
  • A
  • B
  • C
Answer
Correct option: D.
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MCQ 421 Mark
When a die is thrown, total number of possible outcomes is ______.
  • $6$
  • B
    $36$
  • C
    $2$
  • D
    None of these
Answer
Correct option: A.
$6$
$6$
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MCQ 431 Mark
If the mean of $8, 4, x, 6, 2, 7$ is $5$ then the value of $x$ is:
  • A
    $1$
  • B
    $2$
  • $3$
  • D
    $4$
Answer
Correct option: C.
$3$

=Given, mean of $8, 4, x, 6, 2, 7$ is $5$
$\Rightarrow  \frac{(8 + 4 + \text{x} + 6 + 2 + 7)}{6} = 5$
$\Rightarrow 27 + x = 6 \times 5$
$\Rightarrow 27 + x = 30$
$\Rightarrow x = 30 - 27$
$\Rightarrow x = 3$

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MCQ 441 Mark
The ratio of the frequencies of blood groups $AB$ and $B$ is.
  • $1 : 2$
  • B
    $1 : 3$
  • C
    $2 : 3$
  • D
    $3 : 4$
Answer
Correct option: A.
$1 : 2$

$3 : 6 = 1 : 2$

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MCQ 471 Mark
What will be the range of the following data?
$32, 41, 28, 54, 35, 26, 33, 23, 38, 40$
  • A
    $25$
  • B
    $23$
  • $31$
  • D
    $54$
Answer
Correct option: C.
$31$
$31$
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MCQ 491 Mark
On how many days were more than $20$ stu-dents present?
  • A
    $1$
  • B
    $2$
  • C
    $3$
  • $4$
Answer
Correct option: D.
$4$

Monday, Tuesday, Wednesday, Thursday

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MCQ 501 Mark
Tally marks are used to find.
  • A
    Class intervals
  • B
    Range
  • Frequency
  • D
    Upper limit
Answer
Correct option: C.
Frequency

The upper limit of class interval is the uppermost value of class interval, and the lower limit if the lowermost value of class interval.
Therefore, in $75 - 85$ the upper limit is $85$

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