CHAPTER-14 STATISTICS (SET-1)

Questions in this test

1. The range of the data: 12,25,15,18,17,20,22,6,16,11,8,19,10,30,20,32 is...
2. The class mark of the class 100-120 is
3. In the class intervals- 10-20,20-30 the number 20 is included in
4. The mean of data 2,3,4,5,0,1,3,3,4,3, is
5. Which of the following is not a measure of central tendency?
6. The collection of information, collected for a purpose is called
7. The mean of $x+2,x+3x+4,$ and $x-2$ is
8. The class marks of a frequency distribution are 15,20,25,30, ________ the class corresponding to the classmark 20 is
9. In a frequency distribution, the mid-value of a class is 10 and the width of each class is 6 the lower limit of the class is
10. The mid-value of a classes interval is 42 and the class size is 10 the lower and upper units are-