a few quick questions about statistics? not for a test, just for clarification :

Question

a few quick questions about statistics? not for a test, just for clarification :>

yanasidlinskiy · Answer

What's the questions about?

boldjon · Answer

looky looky

anonymous · Answer

basically about deciding whether or not something is asymmetric or symmetric. I can't really explain the difference and I did a bit bad on a test because of it :/

anonymous · Answer

It was only the explanation I did bad on, not the work itself. Apparently I lack the understanding of the differences and clear direction for determining either or D:

yanasidlinskiy · Answer

Is it between congruency? Or what?

anonymous · Answer

It was a question based on finding the IQR, which I did just fine! I can past the question and my work here if that helps? I got the work correct, just the second part I had trouble explaining

yanasidlinskiy · Answer

Okay. Post it.

anonymous · Answer

The table below shows the number of hours some business people in two states spend in meetings each week:


State A	21	23	24	22	24	25	23	23	22
State B	24	22	20	23	23	50	20	46	21


Part A: Create a five-number summary and calculate the interquartile range for the two sets of data. (6 points)

Part B: Are the box plots symmetric? Justify your answer. (4 points) <---- this one I had trouble on.

yanasidlinskiy · Answer

What were your boxplots?

anonymous · Answer

Lowest: 21 
Q1: 22 
Median: 23 
Q3: 24 
Highest: 25 

22 - 24 = 2 

State A IQR: 2

anonymous · Answer

State B: 

Lowest: 20 
Q1: 20 
Median: 22 
Q3: 35 
Highest: 50 

20 - 35 = 15. 

IQR = 15

yanasidlinskiy · Answer

The box-plot is symmetric when the median is evenly split between the two.

yanasidlinskiy · Answer

Does that make sense?

anonymous · Answer

Yes, it does, but does that mean that this is symmetric or that it isn't? I put it is asymmetric but that was incorrect? or maybe just my explanation was..

yanasidlinskiy · Answer

If the median is more to the left it's skewed right. If the median is more to the right it's skewed left. If the median is in the middle it's symmetric..

yanasidlinskiy · Answer

Do you know what's the difference between asymmetric and symmetric?

anonymous · Answer

symmetric is even and asymmetric isn't?

yanasidlinskiy · Answer

Yes, pretty much highly asymmetric situations call for an outlier detection rule that treats upward-outliers and downward-outliers differently.

anonymous · Answer

okay, thank you so much!

yanasidlinskiy · Answer

No problem:)