Question

Last Question!

Answer 1

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.
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.

Answer 2

I think its C...

Answer 3

friend i think its b

Answer 4

Hmm...well remember that last last..last question? lol where I calculated the IQR and found out what was and wasn't an outlier?

The IQR = 16

Q1 = 76
Q3 = 92

So the outliers are below

\[\large 76 - (1.5 \times 16) = 52\]
or above
\[\large 92 + (1.5 \times 16) = 116\]

Lee's score is 54...and since that is NOT lower than 52...we do NOT have an outlier...so removing that score will increase the mean...

So I'm not sure...B sounds good but it states the score IS an outlier...but it is not....so D would then sound good...but not including it would decrease the mean...

I would go with D perhaps

Answer 5

Oh ok Thank You Again @johnweldon1993 :)

Answer 6

Lol anytime hun :)

Answer 7

it was wrong tho :( but whatever

Answer 8

Perhaps B was correct then....just based on fact though...it should be incorrect...sorry @Alexandra675 :(

Answer 9

Its cool thx anyways :)