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The mean attendance for the first four meetings is 20. Is the number of students who attended greater than, less than, or equal to 20? Explain

User Shanna
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Answer:

Greater than 20

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


\overline x = (\sum Xi)/(N)

Given mean = 20

Since the question talks about the first four meetings, the sample size = 4


20 = (\sum Xi)/(4)\\ \\\sum Xi = 20 * 4\\\\\sum Xi = 80

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

User Faustino
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