Solved: Data was collected randomly from 50 students at the University of People asking them the number of courses they were taking a given term

Question: Data was collected randomly from 50 students at the University of People asking them the number of courses they were taking a given term.

# of Courses

Frequency

Relative Frequency

Cumulative Relative Frequency

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1

30

0.6

 

2

15

 

 

3

 

 

 

  1. Fill in the missing blanks.
  2. What proportion of students take exactly two courses?
  3. What proportion of students take one or two courses?

Solution:

Data was collected randomly from 50 students at the University of People asking them the number of courses they were taking a given term.

# of CoursesFrequencyRelative FrequencyCumulative Relative Frequency
1300.60.6
215 0.3 0.9
35 0.1 1

 

1.) Proportion of students taking exactly 2 courses: 0.3 or 30%

2.) Proportion of students taking 1 or 2 courses:

Total Frequency Of student taking 1 courses+ Total frequency of student taking 2 courses = 30 + 15 = 45

Cumulative relative frequency of students taking one or two courses = 45/50 = 0.9

This means that Proportion of students taking 1 or 2 courses is 0.9 or 90%

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