American-Made Cars: Complete the cumulative and relative cumulative frequency ta

Question

American-Made Cars: Complete the cumulative and relative cumulative frequency table from the frequency table for the MPG ratings of 476 different American-Made cars. The cumulative frequencies should be whole numbers. Enter relative cumulative frequencies in percentage form rounded to 1 decimal place.

American-Made Cars MPG           Frequency 10 14 61 15 19 175 20 24 159 25 29 65 30 34 16 American-Made Cars              Relative Cumulative              Cumulative MPG Frequency              Frequency less than 14.5                     ? %                      ? less than 19.5                   ? %                       ? less than 24.5                  ? %                      ? less than 29.5                   ? %                       ? less than 34.5                   ? %                       ?

Explanation / Answer

MPG Cumulative frequency Relative cumulative frequency

less than 14.5 61 61/476 = 0.1

less than 19.5 61+175 = 236 236/476 = 0.5

less than 24.5 236+159 = 395 395/476 = 0.8

less than 29.5 395+65 = 460 460/476 = 1.0

less than 34.5 460+16 = 476 476/476 = 1.0

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