MCQ on Data Handling for Class 7
Class 7 Maths Chapter 3 Data Handling MCQ
MCQ of Data Handling Class 7
I. Multiple Choice Questions:
Question 1.
________ is based on all observations ( )
A) Range
B) Mean
C) Median
D) Mode
Answer:
B) Mean
Question 2.
The difference between maximum and minimum value of a data is called ________ ( )
A) frequency
B) median
C) mean
D) range
Answer:
D) range
Question 3.
denotes _______ ( )
A) 5
B) 10
C) 9
D) 8
Answer:
C) 9
Question 4.
Which of the following is true? ( )
A) Mean = Median
B)Mode = \(\frac{\text { Sum of the all observations }}{\text { 2 }}\)
C) Median is the middle most value of the data.
D) Range = Min.value – Max. value
Answer:
C) Median is the middle most value of the data.
Question 5.
Mean of 11,12,13,14 is _____( )
A) 9
B) 10
C) 11
D) 13
Answer:
D) 13
Question 6.
Middle most value of a data Is called __________ ( )
A) Median
B) A.M.
C) Range
D) Total
Answer:
A) Median
Question 7.
Mean of 0,1,2,3,6,1 is __________ ( )
A) \(\frac { 1 }{ 7 }\)
B) 1
C) \(\frac { 1 }{ 6 }\)
D) 0
Answer:
C) \(\frac { 1 }{ 6 }\)
Question 8.
Mean of a, b and c is ________ ( )
A) \(\frac{a b c}{3}\)
B) \(\frac{a+b+c}{3}\)
C) \(\frac{ab}{c}\)
D) \(\frac{a+bc}{2}\)
Answer:
B) \(\frac{a+b+c}{3}\)
Question 9.
The sum of 20 observations is 400, then the mean is _________ ( )
A) 20
B) 45
C) 29
D) 340
Answer:
A) 20
Question 10.
Median of numbers from 4 to 10 is __________ ( )
A) 4
B) 6
C) 7
D) 5.5
Answer:
C) 7
Question 11.
In a data Range = 100. Max. value is 180, then minimum value = __________ ( )
A) 110
B) 180
C) 90
D) 80
Answer:
D) 80
Question 12.
Range of first 99 natural number is __________ ( )
A) 100
B) 98
C) 90
D) 1
Answer:
B) 98
Question 13.
Sum of 11 observatIon is 132, then the mean= ___________ ( )
A) 11
B) 16
C) 12
D) 19
Answer:
C) 12
Question 14.
Mode of 1, 1, 3, 7, 1, 2, 3, 1, 1, 4, 5, 6, 1 is____________ ( )
A) 4
B) 7
C) 3
D) 1
Answer:
D) 1
Question 15.
Bimodal data has __________ modes ( )
A) 2
B) 4
C) 3
D) 1
Answer:
A) 2
Question 16.
Average of \(\frac { -1 }{ 2 }\), \(\frac { -1 }{ 3 }\), \(\frac { 1 }{ 6 }\) is _________ ( )
A) \(\frac { 1 }{ 6 }\)
B) \(\frac { -1 }{ 2 }\)
C) 0
D) \(\frac { 1 }{ 6 }\)
Answer:
A) \(\frac { 1 }{ 6 }\)
Question 17.
Which of the following is false? ( )
A) In a bar graph, the width of all bars is same
B) In a bar graph, the height of all bars is same
C) Range = Max. value – Min. value
D) All above.
Answer:
B) In a bar graph, the height of all bars is same
Question 18.
In a data sum of all observation is 108 and the number observations are 20, then mean = ________ ( )
A) 45
B) 54
C) 40
D) 70
Answer:
B) 54
Question 19.
Which of the following denotes 11 ________ ( )
Answer:
(C)
Question 20.
The mean of 75 number is 30, if each observation is multiplied by 2, then new mean is _________ ( )
A) 80
B) 70
C) 30
D) 60
Answer:
D) 60
Question 21.
Mean of a,a + 2,a + 4, a + 6 is __________ ( )
A) a + 3
B) a – 3
C) 4a + 1
D) 3a – 2
Answer:
A) a + 3
Question 22.
The mean of 4,6,8 and P is 10, then p = _______ ( )
A) 12
B) 22
C) 32
D) 16
Answer:
B) 22
Question 23.
\(\frac{x_1+x_2+x_3+\ldots+x_n}{n}\) = _________ ( )
A) Mode
B) Median
C) Mean
D) Range
Answer:
C) Mean
Question 24.
Identify the measure of central tendency among the following ( )
A)Mode
B) Mean
C) Median
D)All above
Answer:
D)All above
Question 25.
The information collected is called _________ ( )
A) Data
B) Range
C) Mean
D) None
Answer:
A) Data
Question 26.
Which of the following is a bar gragh.
Answer:
(C)
Question 27.
Mean of 101 and 103 is ___ ( )
A) 102
B) 104
C) 204
D) 201
Answer:
A) 102
Question 28.
Median of the data : 36, 24, 17, 46, 18, 35,25, is ______ ( )
A) 19
B) 17
C) 25
D) 15
Answer:
C) 25
Question 29.
The median of the following data 3,12,17,14,8,5,7,15 ( )
A) 12
B) 9
C) 10
D) 14
Answer:
C) 10
Question 30.
The median of the following data 38,31,27,36,28,40,35,25 ( )
A) 40
B) 37
C) 35
D) 33
Answer:
D) 33
Question 31.
The median oldie followIng data 10, 30, 100, 20, 80 ( )
A) 30
B) 80
C) 100
D) 20
Answer:
A) 30
Question 32.
Range of first ‘n’ natural number is ____ ( )
A) \(\frac { n }{ 2 }\)
B) \(\frac { n – 1 }{ 2 }\)
C) n – 1
D) 2n + 1
Answer:
C) n – 1
Question 33.
Find the range of the data 16, 21, 30, 15,16,18 ( )
A) 16
B) 15
C) 17
D) 12
Answer:
B) 15
Question 34.
Mean of first ‘n’ natural number is ______ ( )
A) \(\frac{2}{n+1}\)
B) \(\frac { n }{ 2 }\)
C) \(\frac { n+1 }{ 2 }\)
D) \(\frac { n }{ 2 }\) + 1
Answer:
C) \(\frac { n+1 }{ 2 }\)
Question 35.
Mode of first 1oo even number is _____ ( )
A) 198
B) 199
C) 171
D) no mode
Answer:
D) no mode
Question 36.
If the mean of five observations a, a + 2, a + 4, a + 6 and a + 8 is 11. Find ‘a’ ______ ( )
A) 3
B) 7
C) 9
D) 2
Answer:
B) 7
Question 37.
The mean of first 5 whole numbers is ______ ( )
A) 2
B) 3
C) 4
D) 5
Answer:
A) 2
Question 38.
Mode of a,b,c,d………z is _____ ( )
A) a
B) c
C) d
D) no mode
Answer:
D) no mode
Question 39.
Mode of a + 1, b, c + 2, a + 1, 2a + 3, a + 1 is 7, then a = _____ ( )
A) 7
B) 6
C) 3
D) 4
Answer:
B) 6
Question 40.
A trimodal data will have ______ modes ( )
A) 6
B) 5
C) 4
D) 3
Answer:
D) 3
II. Fill in the blanks:
Question 41.
3 median – 2 mean = _______
Answer:
mode
Question 42.
________elfected by extreme values.
Answer:
Median
Question 43.
The median of 5 observatIon is 10. The extreme values are discarded, then the median of new three observation is ______.
Answer:
10
Question 44.
Mode of first n – 1 natural number is _________
Answer:
No mode
Question 45.
In a bar graph __________ of all bars is same.
Answer:
width
Question 46.
Representing the data with the help of rectangles (or) bases is called ___________
Answer:
Bar graph
Question 47.
Representing the data with the help of pictures is called _______
Answer:
Pictograph
Question 48.
Mode of 7, 8, 0. 1, 2, 3, 4, 5, 99. 97, 7 is ___________
Answer:
7
Question 49.
Mean of a – 1,a – 2, a – 3 is__________
Answer:
a – 2
Question 50.
P1 = 8, 9, 7, 0, 23, 23, 17, 1, 6, 23
P2 = 32, 45, 66, 23, 23, 1, 1, 1, 9, 12, 23, 1
Mode of the above combined (P1 & P2) data is _________
Answer:
23
Question 51.
The median of the data 5, 7, 9, 10, 11 is _____
Answer:
9
Question 52.
Mode + 2 Mean = ______
Answer:
3 median
Question 53.
Answer:
19
Question 54.
\(\frac{\mathrm{f}_1 \mathrm{x}_1+\mathrm{f}_2 \mathrm{x}_2+\mathrm{f}_3 \mathrm{x}_3+\ldots \ldots \mathrm{f}_{\mathrm{n}} \mathrm{x}_{\mathrm{n}}}{\mathrm{f}_1+\mathrm{f}_2+\ldots \ldots . \mathrm{f}_{\mathrm{n}}}\) is called ______ of the data.
Answer:
mean
Question 55.
The mean of all factors of 10 is _____
Answer:
4.5
Question 56.
The mean of 6, 4, 8, 10, p is 10, then p = _____
Answer:
22
Question 57.
The year in which least number of vehicles is _________
Answer:
1997
Question 58.
The year in which highest number of vehicles produced is _________
Answer:
1998
Question 59.
The difference between the number of vehicles produced in the year 1999 and 1996 is _________
Answer:
1500
Question 60.
Number of vehicles produced in the year 1995 is _______ (approximately)
Answer:
3800
Question 61.
If no value of a data is repeated (or) comes only one time, then the mode of the data is ________
Answer:
no mode
Question 62.
The sum of heights of class X students of a school ¡n 1414 cm who are 10 in number, then the mean height is ______ cm
Answer:
141.4
Question 63.
Mean of first four consecutive multiples of 3 is _______
Answer:
7.5
Question 64.
Mean of first 5 prime number along with zero is ________
Answer:
\(\frac { 14 }{ 3 }\)
Question 65.
In data 4 is repeated 10 times, 9 is repeated 12 times, 1 is repeated 4 times, then the mode Is _______
Answer:
9
Question 66.
In a data, 7 is repeated 7 times, 8 is repeated 9 times, then mode of the data is _______
Answer:
8
Question 67.
The mean of n observations is 10 and the sum of the observation is 180, then the value of n is _______
Answer:
18
Question 68.
There are 101 observations in a data which are arranged in descending order, then the median is _____ observation.
Answer:
51
Question 69.
To denote 60, we use _________ number of times.
Answer:
12
III. Match the following:
Question 70.
i) Mean | a) z |
ii) Median | b) x |
iii) Mode | c) M |
Answer:
B) i – b, ii – c, iii – a
Question 71.
i) Based on all observations | a) Median |
ii) A.O or D.O is used in calculation of | b) Mode |
iii) More number of times repeated value | c) Mean |
Answer:
D) i – c, ii – a, iii – b
Question 72.
I) Mode | a) 3.5 |
ii) Median | b) 3.6 |
iii) Mean | c) no mode |
Answer:
C) i – c, ii – a, iii – b
Question 73.
i) Mean of a, b, 1 | a) p |
ii) Median of 7, 10, 16 | b) \(\frac { a+b+1 }{ 3 }\) |
iii) Mode of p, q, r, p, s | c) 10 |
Answer:
A) i – b, ii – c, iii – a
Question 74.
i) Mean of -1, 2, 3 | a) No mode |
ii) Mode of 1 to 10 | b) 37 |
iii) Median of 101, 12, 19, 105, 37 | c) \(\frac { 4 }{ 3 }\) |
Answer:
B) i – c, ii – a, iii – b
Question 75.
i) AM of 1,2,3, …..10 | a) No mode |
ii) Median of 1, 2, 3 | b) 2 |
iii) Mode of the letter in V, G, S | c) 5.5 |
Answer:
C) i – c, ii – b, iii – a
Question 76.
i) Bimodal data | a) No mode |
ii) Trimodal data | b) 2 modes |
iii) Mode of 9,8,7,0,1 | c) 3 modes |
Answer:
A) i – b, ii – c, iii – a
Question 77.
Under youth awareness programme, a data is collected by the Govt. about the age groups and how many of the category are there?
Observe the above graph and answer the following questions.
i) How many teacher are of age 30?
Answer:
7
ii) How many teacher are ther of age less than 40?
Answer:
15
iii) Total how many teacher were suryed is all?
Answer:
25
iv) Which age group is the highest?
Answer:
30 years
v) What is the number of persons difference between 40 and 45?
Answer:
6 – 4 = 2
Question 78.
The following data shows the number of literate females in the age group 10 to 40 years. Study the graph carefully and answer the questions given below.
i) How many literate females are there is total?
Solution:
300 + 900 + 700 + 1 1 00 + 900
= 1200 + 1800 + 900
= 3900
ii) Flow many literate females are there in 30 age group?
Answer:
700
iii) How many literate females are there in 40 age group’
Answer:
1100
iv) What is the difference between first and last age groups?
Answer:
900 – 300 = 600
v) Which two age groups are equal number of literate female?
Solution:
20 and 50