SECTION 2.1
1. Automobile fatalities The table gives the numbers of passenger car occupants killed in accidents in 2011 by car type.
Subcompact and Mini | 3610 |
Compact | 2830 |
Intermediate | 4083 |
Full | 2810 |
Unknown | 248 |
Source: www.nhtsa.gov |
Convert this table to a relative frequency table.
Find the relative frequency distribution for the car type data.
Answer to Problem 1E
The relative frequency distribution is:
Automobile fatalities | Relative frequency |
Subcompact and Mini | 0.2658 |
Compact | 0.2084 |
Intermediate | 0.3006 |
Full | 0.2069 |
Unknown | 0.0183 |
Total | 1.00 |
Explanation of Solution
Given info:
The table represents the type of cars, where the number of passenger in car occupants killed by those car type that killed in accident with year 2011 with frequency.
Calculation:
Relative frequency:
The general formula for the relative frequency is,
The relative frequencies for the remaining types of cars are obtained below:
Automobile fatalities | Frequency | Relative frequency |
Subcompact and Mini | 3,610 | |
Compact | 2,830 | |
Intermediate | 4,083 | |
Full | 2,810 | |
Unknown | 248 | |
Total | 13,581 | 1.00 |
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