Question

Use the boxplot values to determine the shape of the distribution.

minimum = 15.8

Q1 = 23.6

median = 29.2

Q3 = 34.1

maximum = 54.3

Question 10 options:
left-skewed
right-skewed
approximately normal

Answer 1

where is the median as far as the range goes?

Answer 2

(54.3+15.8)/2 = 35.05

the median is to the left of the mean; so it would be right skewed if i see it corectly

Answer 3

but when you take the outliers off; your pretty much normalized then

Answer 4

so i have to wonder if i recall these correctly

Answer 5

where do you see outliers

Answer 6

min and max are outliers; which is why you dont use them in the interquartile range

Answer 7

but the position of the box itself is the clue and it is off the middle

Answer 8

its heavy to the left so it skews right

Answer 9

i agree skewed right

Answer 10

i thought one measure of outliers using box plots was if the values was more than 1.5*IQR's from Q1 or Q3, or am i remembering incorrectly

Answer 11

dunno, you seem to be remembering more than me so id say go for it :)

Answer 12

IQR=15.75
Q3+1.5 IQR=34.1+1.5*15.75=57.727

Answer 13

and the max is 54.3, i.e., not an outlier; btw there is another measure for an "extreme" outlier but I do not remember the scale factor for the IQR