the five number summary in the data set was 45,54,59,63,70. an observation is considered a outlier if it’s below what. An observation is considered a outlier if it’s above what?

Answer 1

Reading from left to right the 5 number summary gives:

the minimum = 45

Q1 = 54

Q2 = 59

Q3= 63

the maximum = 70

Now the interquartile range = IQR = Q3-Q1

Potential outliers are points more that Q3 + 1.5IQR or lower than Q1-1.5IQR

So here potential outliers are either below 36.9 or above 80.1.

Hope this helps.