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1
The daily sale of kerosene (in litres) in a ration shop for six days is as follows : 75, 120, 12, 50, 70.5 and 140.5. The average daily sale is _____________
150
10
142
78
2
The mean of first 5 prime numbers is _________________.
5.8
6.8
5.6
6.5
3
20 years ago, when my parents got married, their average age was 23 years, now the average of my family, consisting of myself and my parents only is 35 years. My present age is
17 years
14 years
12 years
16 years
4
Find the mean of the following distribution.
37
38.67
38
None of these
5
The mid-point of a class interval is called its __________________.
Class size
Class mark
Upper limit
Lower limit
6
The mode of the data : 12, 8, 4, 8, 1, 8, 9, 11, 9, 10, 12, 8 Is ____________.
9
11
8
7
The difference between the highest and the lowest value of the observations in a data is known as _____________________.
Mode
Frequency
Median
Range
When an investigator collects data by using a proper form and with a definite plan is called_______________.
Primary data
Organised data
Un - organised data
Secondary data
The mode of the following data given :0, 3, 2, 1, 3, 5, 4, 3, 4, 3, 2, 1, 2, 0 is ______________.
There are various measures of central tendency are
1. Mean
2. Median
3. Mode
Only 1
Only 1 and 2
Only 2 and 3
1, 2 and 3
30 children were asked about the number of hours, they watched TV programs in previous week. The results are as follows: 1, 6, 2, 3, 5, 12, 5, 8, 4, 8 10, 3, 4, 12, 2, 8, 15, 1, 17, 6, 3, 2, 8, 5, 9, 6, 8, 7, 14, 12. How many children watch TV 17 hours?
12
The exclusive 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
13
If the mean of the following distribution is 20. The value of x is _____________.
30
20
14
The class mark of the class is 25 and if the upper limit of that class is 32, the lower limit for that class is ______________________.
18
17
15
The mode of the data : 1, 7, 2, 4, 5, 9, 8, 3 is ____________.
Mode Does Not Exist
16
A class interval of a data has 15 as the lower limit and 25 as the class size, then the class mark of the class is ______________________.
27.5
The mean of 8, 11, 6, 14, x and 13 is 16. Find the value of the observation x.
34
45
44
43
In the exclusive form of class boundary the value 19.4 will lie in the _________________ class interval.
10 - 20
20 - 30
30 - 40
19
In the exclusive form of class boundary the value 20 will lie in the _________________ class interval.
Calculate the range of the given sets of data
7,47,8,42,47,95,42,96,2
84
71
94