The number of hours for which students of a particular class watched television during holidays is shown through the given graph. Answer the following questions. The hours in which maximum number of students watched TV, is
3 - 4 hours
5 - 6 hours
4 - 5 hours
2 - 3 hours
Which of the following is correct?
Study the graph carefully and answer the question given below it.The increase in import in 1982 was what percent of the import in 1981?
25%
5%
125%
80%
The arithmetic mean of 5, 7, 9, 8, 7 is
6.8
7.0
7.2
7.4
The range of the following data is 21, 6 , 7, 9 , 4, 8 , 13 , 9.
7
15
13
17
Study the graph carefully and answer the questions given below it.
The import in 1976 was approximately how many times that of the year 1971?
0.31
1.68
2.41
3.22
To draw the graph of a line, the least number of points required is
One
Two
Three
Four
Adjoining pie chart gives the expenditure (in percentage) on various items and savings of a family during a month. Expenditure is maximum on
Others
Education for children
Clothes
Food
The difference between the highest and the lowest score is called
Quartile deviation
Standard deviation
Range
Mode
In which year did the import register highest increase over its preceding year?
1973
1974
1975
1982
