this site sucks
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i can't find anything and your always wrong so I don't trust anything you say
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A school principal wants to know the average number of extracurricular activities students in her school are involved in. She assigned each student a number from 1 to 415. Using a random number generator, she selected 200 students to be part of the sample. She concluded that students are involved in an average of two extracurricular activities. Is the principal’s conclusion valid?
To determine if the principal's conclusion is valid, we would need to perform statistical analysis on the data. However, from the information provided, we can't ascertain whether the selected sample is representative of the entire student population.
If the sample is indeed representative, the average number of extracurricular activities for the selected sample could be used as an estimate of the average for the entire student population. In that case, the conclusion of an average of two extracurricular activities for students in the school would be valid.
However, if the sample is not representative, it could introduce sampling bias and undermine the validity of the conclusion. To ensure a more accurate conclusion, it is necessary to randomly select a sample that is truly representative of the entire student population.