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CBSE Class 10- Mathematics: Chapter β 14 Statistics Part 18
4 Mark Questions
Question 1:
In the following distribution, locate the median mean and mode.
Monthly consumption of electricity | |||||||
No. of consumers |
Answer:
Monthly consumption of electricity | No. of consumers | Class Mark (X) | |||
Now and this is in class
Median class = 125 - 145
Here,
We know that
Hence, Median
Again Mean
For mode, since the maximum frequency is and this corresponds to the class
Here,
Thus, Median , Mean and Mode
The three measures are the same in the class.