Respuesta :
Percent of students in exactly 2 courses is 30%.
Relative cumulative frequency can be found by dividing the frequency of each interval by the total number of observations.
Given;
The total number of students is 50, the number of students in one course is 30 and the number of students in 2 courses is 15.
Number of students in three courses = 50-30-15 = 5
Relative frequency for 2 courses = No. of students in 2 courses/Total no.
of students
= 15/30 = 0.3
Relative frequency for 3 courses = No. of students in 2 courses/Total no.
of students
= 5/50 = 0.10
Cumulative relative frequency of 1 course = 0.6
Cumulative relative frequency of 2 course = 0.6 + 0.3 = 0.9
Cumulative relative frequency of 3 course = 0.6 + 0.3 +0.1 = 1
Percent of students in exactly 2 courses is 30%.
Learn more about the Cumulative relative frequency with the help of the given link:
https://brainly.com/question/12049955
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I understand that the question you are looking for is "Fifty part-time students were asked how many courses they were taking this term. What percent of students take exactly two courses?"
