Answer:
Greater than 20
Step-by-step explanation:
Since mean is the average number of students, the formula for calculating the mean attendance of students is expressed as;
Mean = total number of student/sample size
[tex]\overline x = \frac{\sum Xi}{N}[/tex]
Given mean = 20
Since the question talks about the first four meetings, the sample size = 4
[tex]20 = \frac{\sum Xi}{4}\\ \\\sum Xi = 20 * 4\\\\\sum Xi = 80[/tex]
Since the sum total of students for the first four meetings is 80, hence the number of students who attended the meeting is greater than 20
