100% FREE ACCESS7th Standard CBSE Syllabus & Materials
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Published on: 24/08/2019
Data Handling
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Questions + Answers key
Take MCQ Mathematics Test
1.
A number is selected at random from the first five natural numbers. Find the probability that the number is a prime?
\(\frac{3}{7}\)
\(\frac{4}{7}\)
\(\frac{3}{5}\)
\(\frac{2}{5}\)
2.
A container contains 3 red and 4 black balls. If one ball is selected at random from the container, what is the probability that it is black?
\(\frac{3}{7}\)
\(\frac{4}{7}\)
1
zero
3.
An unbiased die is tossed once. Which of the following is the probability of getting an even number?
1
\(\frac{1}{2}\)
\(\frac{1}{3}\)
\(\frac{1}{4}\)
4.
Which of the following is the mode of the data 1, 1, 2, 4, 3, 2, 1, 2, 2, 4?
1
2
3
4
5.
Which of the following is the mean of first five natural numbers?
2
3
4
5
6.
The difference between the highest and the lowest observations in a data is its
frequency
width
range
mode
7.
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
24
34
33
48
8.
If mean of 6 observations is 4, then their sum is
20
22
24
26
9.
The median of the data 2, 16, 29, 88, 49, 99,16,4,37 is
16
29
99
88
10.
The mode of the data 22,29, 27, 23, 43, 41, 27 is
23 and 27
27
23 and 43
22
11.
Median of the data: 4,5,9,2,6,8, 7, is 2
12.
The mode of the observation 23, 26,15,12,28,38,19, 23, 26, 23 is 28.
13.
The range of the data 3,7, 1, - 2, 2, 6, - 3, - 5 would change, if 8 is added to each value in the data.
14.
The range of the data 2, - 5, 4, 3, 7 and 6 would change, if 2 is subtracted from each value in the data.
15.
The data 11, 12, 16, 18, 19 has every observation as mode.
16.
The sum of all the observations, when divided by the number of observations gives the _________ of the data[median/mean]
17.
Median is one of the observation in the data if number of observations is________.
18.
In throwing a die the number of possible outcomes is___________.
19.
The probability of an event which is impossible to happen is__________
20.
The probability of an event which is certain to happen is__________.
21.
In a given data, arranged in ascending or descending order, the middle most observation is called___________.
22.
.......can be used to compare two collections of data
23.
When a die is thrown, the probability of getting a number less than 7 is _____
24.
If 12 observation's mean is 6. Then, the sum of 12 observations is....................
25.
The representation of data with bars of uniform width is called _____
1.
(c)
\(\frac{3}{5}\)
2.
(b)
\(\frac{4}{7}\)
3.
(b)
\(\frac{1}{2}\)
4.
(b)
2
5.
(b)
3
6.
(c)
range
7.
(c)
33
8.
(c)
24
9.
(b)
29
10.
(b)
27
11.
(b)
12.
(b)
13.
(b)
14.
(b)
15.
(a)
16.
( )
Mean
17.
( )
odd
18.
( )
6
19.
( )
0
20.
( )
1
21.
( )
Median
22.
A double bar graph can be used to compare two collections of data.
23.
We know that on a die, there are six faces with numbers from 1 to 6. Clearly, all the numbers are less than 7. Hence, whatever number appears on throwing a die, it will be less than 7. In other words, we can say that it is certain to get a number less than 7 on throwing a die. Hence, its probability is 1
24.
\(Mean= \frac { sum\ of\ observations }{ number\ of\ observatins } \)
\(6=\frac { sum\ of\ observations }{ 12 } \)
Sum of observations = 12 x 6 = 72
25.
The representation of data with bars of uniform width is called bar graph
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CBSE 7th Standard CBSE Subjects
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