Statistics

A table shows the average of 3, 6, 4, 2, and 100. Is this data misleading, why?

• Yes, because 100 is an extreme outlier

• No, because all the numbers are less than 1000. 

• No, because 100 fits into the data set.

• Yes, because 2 is an outlier 

What is the mode in the set of data?
2,2,2,4,4,5,6,6,6,7

• 2

• 6

• 2 and 6

• 2,4, and 6

find the median of
20 30 40 50 60

• 50

• 40

• 1

• 5

_______ is a part of a group being surveyed.

• Sample

• Population

• Random Sample

• Quartile

Josh surveyed every 5th person who walked into the cafeteria. Is this a systematic random sample

• No

• Yes

Why do we use double box and dot plots?

• To make people confused

• to make data seem misleading

• to save space on paper

• to compare populations

Which is NOT ture?

• The spreads of the low temperatures for Reybold and Picktown are not the same

• Neither box plot is symmetrical

• The median low temeratures for Reybold and Picktown are different

• The lower extreme for Picktown is approximately 5 degrees lower than the lower extreme for Reybold

What is the approximate difference in the interquartile ranges?

• 20

• 12

• 32

• 40

A data set can have more than one mode

• True

• False

What is the term for the median of the lower half of the data?
Hint: Look at your notes!

• Lower Quartile

• Upper Quartile

• Median

• Maximum