how do I do part c? It says my answer is wrong but i dont know why... A busy air

Question

how do I do part c? It says my answer is wrong but i dont know why...

A busy airport collected the data below on the number of passengers by airline for a particular month. Suppose the airport manager is interested in analyzing these data. Complete parts a through d. 75,144 24,084 550,060 16,270 135,218 18,075 195,955 73,203 35,101 426,901 45,570 254,35453,467 1,818 96,972 301,224 96,238 68,787 28,163 10,260 629,881 1,440 73,217 20,267 91,996 613,848 473,127 468,156 25,217 86,671 217,867 101,601 417,259 a. Using the 2* 2n guideline, what is the minimum number of classes that should be used to display the data in a grouped data frequency distribution? b. Referring to part a, what should the class width be, assuming you round the width up to the nearest 1,000 passengers? 105,000 c. Referring to parts a and b, develop a grouped data frequency distribution for these airport data. (Start the first class at 0.) (Simplify your answers.) Number Of PassengersFr 1440 and under 106440 21 Frequency

Explanation / Answer

Solution:

c. Since it has a class width is 105,000, the 6 classes are 0-105,000, 105,000 - 210,000, 210,000 - 315,000 - 315,000, 420,000, 420,000 - 525,000, 525,000 - 630,000.

Class Frequency 0-105,000 21 105,000-210,000 2 210,000-315,000 3 315,000-420,000 1 420,000-525,000 3 525,000-630,000 3 33

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