Statıstıcs I Deneme Sınavı Sorusu #1260840
In a salary data example, the frequency table shows that there are 20 workers of whose weekly salaries are between 415 and 525 dollars. Which of the below should we use if we need to know, for example, how many workers earn under 525 dollars?
|
Class Interval |
|
Frequency |
|
Cumulative Relative Frequency |
|
Cumulative Frequency |
|
The Percentage of Cumulative Relative Frequency |
Yanıt Açıklaması:
We can obtain such information by using cumulative frequency. Cumulative frequency is used to determine the number of elements that falls above or below a particular value in a given class interval. The cumulative frequency of a class is calculated by adding its frequency to the sum of all predecessor class frequencies. Consequently, the last value must be equal to the sample size.
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