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Mathematics 22 Online
OpenStudy (anonymous):

Can someone help me for a medal and fan?

OpenStudy (anonymous):

The data set shows the test scores for 7 students in a math class: Amit 88 Traci 76 Lee 54 Barry 83 Amy 92 Ling 95 Rachael 80 When calculating the average score for the class, the teacher claims that she should exclude Lee's test score because he was absent the entire week before the test. Evaluate this claim by selecting the statement that best reflects why the reasoning is either correct or flawed.

OpenStudy (lizz123):

So you are finding the average. Add every number expect for Lee

OpenStudy (anonymous):

Okay hang on

OpenStudy (lizz123):

\[88+76+83+92+95+80=?\]

OpenStudy (anonymous):

514

OpenStudy (anonymous):

then you divide by how many numbers there are

OpenStudy (lizz123):

now divide your number by 6

OpenStudy (anonymous):

Okay

OpenStudy (anonymous):

85.67

OpenStudy (anonymous):

Oops, I just realized I didn't put the answer choices. My bad! Answer Choices are: The reasoning is flawed. Lee's test score is not an outlier and removing it would decrease the mean. The reasoning is correct. Lee's test score is an outlier and excluding it would increase the mean. The reasoning is flawed. Lee's test score is an outlier, but there is no evidence that this test score is not typical. The reasoning is correct. Lee's test score is not an outlier, but the value should not be included anyway due to the fact that he was absent.

OpenStudy (anonymous):

Would it be A?

OpenStudy (anonymous):

Or is it B?

OpenStudy (lizz123):

It think you are correct I think it is B

OpenStudy (lizz123):

Do you still need help

OpenStudy (anonymous):

No, thank you!

OpenStudy (lizz123):

no prib

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