CBSE Class 10-Mathematics: Chapter –14 Statistics Part 6
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Question 2:
For the following grouped frequency distribution, find the mode.
Class | |||||||
Answer:
Since the maximum frequency and it corresponds to the class
Modal class
Question 3:
Construct the cumulative frequency distribution of the following distribution:
Class | |||||
Answer:
The required cumulative frequency distribution of the given distribution is given below:
Class | Frequency | Cumulative Frequency |
Question 4:
The median and mode of a distribution are and respectively, find its mean.
Answer:
We know that Mean Mode (Median-Mode)
Question 15:
The marks distribution of students in a mathematics examination are given below
Class Interval | ||||||
Answer:
Since the maximum frequency and it corresponds to the class .
The modal class
Here,
We know that mode Mo is given by
Thus, Mode marks
Question 6:
Find the mode of this data.
Construct the cumulative frequency distribution of following distribution:
Marks | ||||||
Answer:
The required cumulative frequency distribution of the given distribution is given below.
Marks | No. of Students | Cumulative Frequency |