GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
3. Do not refresh or back page.
4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
If the arithmetic mean of 6, 8, 5, 7, x and 4 is 7, then x is
12
6
8
4
2
The mean of 6, y, 7, x and 14 is 8. Then
x + y = 13
x - y = 13
2x + 3y = 13
3
A random survey of numbers of children of various age group playing in a park was found as follows. Children playing under the age of 15 years are:
40
42
48
45
A random survey of numbers of children of various age group playing in a park was found as follows. Children playing between the age group of 1-2 years are:
9
5
7
Mean of a set of observations is the value which ____________________
Occurs most frequently
Divides observations into two equal parts
Is a representative of whole group
Is the sum of observations
From the following frequency table, find out how many students failed if the pass marks are 40.
29
14
Find the mode of 2, 4, 5, 2, 1, 2, 3, 4, 4, 6, 2.
Find the mode of 43, 36, 27, 25, 36, 66, 20, 25.
36 and 43
66 and 20
36 and 25
None of These
In which year the difference between the highest and the average marks in Maths was maximum ?
2009
2010
2008
2007
10
Which of following statements are true for secondary data
1. When an investigator collects data by using a proper form and with a definite plan.
2. Data are reliable and relevant because they are original in character.
3. Data are collected by some individuals or by some institutions or by research bodies.
Only 1 and 2
Only 2 and 3
Only 1 and 3
None of these
11
The mean of 8, 11, 6, 14, x and 13 is 16. Find the value of the observation x.
34
44
43
Which of the following statement is not true regarding range of data:
1. It tells us how widely the numbers are spread.
2. It is the difference of the highest and the lowest observation.
3. It is the average number of observations.
Only 1
Only 2
Only 3
1, 2 and 3
13
The inclusive form of class boundary is defined as ________________________________________.
The class interval is defined as lower limit inclusive and the upper limit exclusive.
The true limit of a class is obtained by subtracting 0.5 from the lower limit of the class and the true upper limit of the class is obtained by adding 0.5 to the upper limit.
It is equal to half of the sum of the lower and upper limits of a class
15
The total of frequency up to an upper class limit or boundary is known as _____________________.
Average frequency
Cumulative frequency
Frequency distribution
Frequency polygon
16
A survey was carried out for the purpose of determining the number of children in each family. The results are shown in the table below. Calculate the percentage of families which have more than 2 children.
35%
40%
60%
75%
17
18
The frequency table shows the marks obtained by a group of students in a monthly test. Calculate the percentage of students who failed the test if 40 is the passing mark.
3%
12%
15%
30%
19
The mean of the data: 2.2, 10.2, 14.7, 5.9, 4.9, 11.1, 10.5 is ______________.
9.6
8.8
8.5
9.4
20
3. To calculate it we find the maximum and the minimum value in the data, and then the difference between the two is calculated.