Explore numerous Class 7 Maths MCQ and Ganita Prakash Class 7 Maths Part 2 Chapter 5 Connecting the Dots MCQ Online Test with Answers provided with detailed solutions by looking below.
MCQ on Connecting the Dots Class 7
Connecting the Dots Class MCQ Class 7
Class 7 Connecting the Dots Class MCQ
Question 1.
When a cricket team is compared with another team for their performance as a team, the most suitable central tendency is :
(a) mean
(b) mode
(c) median
(d) range
Solution:
(a) mean
Question 2.
Find the arithmetic mean of the numbers 3, 0, -1, 7, 11.
(a) 4
(b) 6
(c) 8
(d) 16
Solution:
Question 3.
Data means information in the form of ………… figures.
(a) raw
(b) numerical
(c) array
(d) none
Solution:
(b) Data means information in the form of numerical figures.
Question 4.
The mean of 12, 22, 32, 42, 52, 62, 72, is : …………
(a) 10
(b) 20
(c) 30
(d) 40
Solution:
(b) The mean of 12, 22, 32, 42, 52, 62, 72 is 20
Select the given portion Q. 5 to 7. The number of tourists visiting a historical place in a week is shown to the following table :
| Day | Number of tourists |
| Monday Tuesday Wednesday Thursday Friday Saturday Sunday |
65 72 98 84 60 108 160 |
Question 5.
Which day is the number of tourists maximum?
(a) Sunday
(b) Monday
(c) Thursday
(d) Wednesday
Solution:
(a) The maximum tourists come at Sunday.
Question 6.
On which day is the number of tourists minimum?
(a) Friday
(b) Thursday
(c) Monday
(d) Saturday
Solution:
(a) The minimum tourists come at Friday.
Question 7.
The difference between the maximum and minimum number of tourists is :
(a) 50
(b) 80
(c) 90
(d) 100
Solution:
(d) Difference =160-60=100
Question 8.
Which among these is not a central tendency?
(a) mean
(b) mode
(c) median
(d) range
Solution:
(d) Range among these is not a central tendency.
Question 9.
The median of the number 85, 86, 78, 89 and 64 is :
(a) 85
(b) 84
(c) 78
(d) 86
Solution:
(a) The median of the number 85, 86, 78, 89 and 64 is 85.
Question 10.
In which data set are the mean, median, mode and range all the same number ?
(a) 1, 2, 3, 3, 2, 1, 2
(b) 1, 2, 3, 1, 2, 3, 1
(c) 1, 3, 3, 3, 2, 3, 1
(d) 2, 2, 1, 2, 3, 2, 3
Solution:
(a) 1,2,3,3,2,1,2 data set are the mean, median, mode and range all the same number.
Question 11.
A student was asked to find the arithmetic mean of the following 12 numbers : 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x. The mean was 12. The value of x is :
(a) 3
(b) 7
(c) 17
(d) 31
Solution:
(b) The value of x is 7.
Question 12.
The median of the set of numbers 12, 26, 17, 28, 10, 14 and 35 is :
(a) 28
(b) 26
(c) 17
(d) 44
Solution:
(c) The median of the set of numbers 12, 26, 17,28,10,14 and 35 is 17.
Question 13.
A card is drawn from a pack of 100 cards numbered 1 to 100. Find the probability of drawing a square number.
(a) \(\frac{1}{10}\)
(b) \(\frac{9}{10} \)
(c) \(\frac{1}{5}\)
(d) \(\frac{2}{5}\)
Solution:
(a) [Clue: There are 10 square numbers viz. 1,4,9, …….., 100 between 1 and 100].
Question 14.
Find the mode of :
5, 5, 7, 8, 8, 9, 7, 9, 10, 10, 11, 9, 13
(a) 5
(b) 9
(c) 10
(d) 8
Solution:
(b) 9
Arrange the series in ascending order :
5, 5, 7, 7, 8, 8, 9, 9, 9, 10, 10, 11, 13
Hence, the mode is 9 because it occurs 3 times.
Connecting the Dots Class 7 Assertion and Reason Questions
Instructions:
In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option.
(a) Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
(c) Assertion (A) is true, but Reason (R) is false.
(d) Assertion (A) is false, but Reason (R) is true.
1. Assertion (A) : The mean of the dataset 2, 4, 4, 5, 6, 8 is 5.
Reason (R) : The mean is calculated by dividing the sum of all observations by the total number of observations.
Analysis : (A) is true :
\(\frac{(2+4+4+5+6+8)}{6}=\frac{29}{6}\) ≈ 4.83
Correction: The assertion is false in this specific calculation, demonstrating the need to check the math. If we change the assertion’s numbers to make the mean 5 exactly, it would be a valid point.
(R) is true: This is the definition of a mean.
If A were true, then R would be the correct explanation.
2. Assertion (A) : The median of the dataset 10,15,20,25,30 is 20.
Reason (R) : The median is always the middle observation when the data is arranged in descending order.
Analysis :
(A) is true: 20 is the middle value.
(R) is true: This is the definition of a median.
Result: Both A and R are true, and R is the correct explanation of A. (Option a)
3. Assertion (A) : A double-bar graph is useful for comparing the performance of two different groups over the same categories.
Reason (R) : A bar graph uses bars of uniform width where the length of each bar is proportional to the value it represents.
Analysis :
(A) is true: This is the primary function of a double-bar graph.
(R) is true: This is the definition of a bar graph.
Result: Both A and R are true, but R is NOT the correct explanation of A. R defines how a bar graph works, but not why a double bar graph is suited for comparison. (Option b)
Connecting the Dots Class 7 Fill in the blanks
Question 1.
Data means information in the form of ………… figures. (numerical/frequency)
Answer:
numerical
Question 2.
Mean of first-five whole numbers is ………… (2/3)
Answer:
2
Question 3.
The probability of an impossible event is ………….(2/0)
Answer:
0
Question 4.
The probability of rolling a number greater than 3 with a die is …………. \(\left(\frac{1}{2} / \frac{1}{3}\right)\)
Answer:
\(\frac{1}{2}\)
Question 5.
Data obtained in the original form is called ……….. (primary data/raw data)
Answer:
raw data
Question 6.
The difference between the highest and the lowest values of the data is called its ………… (range, median)
Answer:
range
Question 7.
The number of times a particular observation occurs is called its …………. (frequency/class interval)
Answer:
frequency
Question 8.
After arranging the given data in ascending or descending order of magnitude, the value of the middle-most observation is called……….. of the data. (mean/median)
Answer:
median
Question 9.
The median of first-three prime numbers is …………. (3/4)
Answer:
3
Question 10.
There are ………… prime numbers between 1 to 100. (20,25)
Answer:
25
Connecting the Dots Class 7 True or False
Question 1.
Mean of a and b is \(\frac{a+b}{2}\)
Answer:
True
Question 2.
The mean of first-five natural numbers is 3.
Answer:
True
Question 3.
The median of first-five natural numbers is 3.
Answer:
True
Question 4.
The range of 4,5,8,7,12,5,20 = 12
Answer:
False
Question 5.
Mean of 4,5,6=5.
Answer:
True
Question 6.
The mode is always one of the numbers in a data.
Answer:
True
Question 7.
A data always has a mode.
Answer:
True
Question 8.
The data 6,4,3,8,9,12,13,9 has mean 9.
Answer:
False
Question 9.
The median is always one of the numbers in a data.
Answer:
True
Question 10.
The mean can be one of the numbers in a data.
Answer:
True