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Komok [63]
3 years ago
7

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
Mathematics
1 answer:
lidiya [134]3 years ago
3 0

Answer:

<h3>Greater than 20</h3>

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

\overline x = \frac{\sum Xi}{N}

Given mean = 20

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

20 = \frac{\sum Xi}{4}\\ \\\sum Xi = 20 * 4\\\\\sum Xi = 80

<em>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</em>

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