Question

obtained by ll students in a mathematics test (out
of 100) are given below:
79, 86, 45, 54, 63, 69, 72, 93, 48, 73 and 99. What is the
range of this data?
2. What is the class-mark of the class 150-1707
3 What is the class-mark of the class 90-110?
4. What is the range of the data 15, 75, 88, 90, 11, 20, 15, 20,
10. 40, 78, 25, 45, 33, 62?
5. In a frequency distribution, the class mark of a class is 10.
If the width of the class is 6, then what is the lower limit of
the class?
6. What is the range of the data 29, 14, 27, 18, 9, 15, 45, 61?
7. What is the class-mark of the class 120-140?
8. The class-mark of a class is 10 and class width is 6. What
in the upper limit of the class is:
class width is 4 and the lower limit of​

Answer 1

Answer:

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Answer 2

Answer:

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