Convert the table to relative frequency table.
Answer to Problem 1E
The relative frequency table is as follows,
Car type |
Relative frequency |
Subcompact and Mini | 11.8% |
Compact | 31.5% |
Intermediate | 33.5% |
Full | 21.8% |
Unknown | 1.4% |
Total | 100% |
Explanation of Solution
Calculation:
The given information is that, the data represents the car types with number of passenger car occupants killed in accidents in 2009.
Relative frequency:
The general formula for the relative frequency is,
Substituting the type of Subcompact and Mini car and the number of passenger car occupants killed “1,545” as the frequency and total of passenger car occupants killed as “13,095” as total frequency in relative frequency.
Similarly, the relative frequencies for the remaining car types are obtained below:
Car type | Frequency |
Relative frequency |
Subcompact and Mini | 1,545 | 11.8% |
Compact | 4,128 | 31.5% |
Intermediate | 4,393 | 33.5% |
Full | 2,849 | 21.8% |
Unknown | 180 | 1.4% |
Total | 13,095 | 100% |
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