The cumulative frequency for calculating median is obtained by adding the frequencies of all the :
Compute the median for the following cumulative frequency distribution:
Consider the following distribution: | Marks obtained | Number of students | |----------------|--------------------| | More than or equal to 0 | 63 | | More than or equal to 10 | 58 | | More than or equal to 20 | 55 | | More than or equal to 30 | 51 | | More than or equal to 40 | 48 | | More than or equal to 50 | 42 | the frequency of the class 30-40 is
The following is the distribution of weights (in kg) of 40 persons: | Weight (in kg) | 40-45 | 45-50 | 50-55 | 55-60 | 60-65 | 65-70 | 70-75 | 75-80 | |----------------|-------|-------|-------|-------|-------|-------|-------|-------| | Number of persons | 4 | 4 | 13 | 5 | 6 | 5 | 2 | 1 | Construct a cumulative frequency distribution (of the less than type) table for the data above.
Form the frequency distribution table from the following data: | Marks (out of 90) | Number of candidates | |-------------------|----------------------| | More than or equal to 80 | 4 | | More than or equal to 70 | 6 | | More than or equal to 60 | 11 | | More than or equal to 50 | 17 | | More than or equal to 40 | 23 | | More than or equal to 30 | 27 | | More than or equal to 20 | 30 | | More than or equal to 10 | 32 | | More than or equal to 0 | 34 |
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