Stats 12.3-12.4 HW Check

To learn about teenagers' opinions of different social media platforms, a survey was given to students of one high school. This sample is...

• representative

• biased

• random

A _______ is a part of a the group we are interested in gathering data on that is being surveyed.

• Representative

• Population

• Sample

Determine if the following study is biased.

You want to know your Lexington's favorite fast-food restaurant. You randomly ask 30 people their preference as they leave a McDonald's restaurant.

• Biased

• Unbiased

Find the median of the box and whisker plot.

• 58

• 60

• 62

• 64

Find the Quartile 1 of the box and whisker plot.

• 60

• 62

• 64

• 66

What is the range of this data set?

• 6

• 12

• 13

• 19

What is the interquartile range?

• 4

• 6

• 2

• 8

Explain one reason why this graph may be misleading?

• the x-axis does not have equal intervals

• San Fransisco is not a real city

• you cannot have percents in a line graph

• the y-axis does not have equal intervals

Why is this graph misleading?

• broken scale (doesn't start at 0)

• the interval on the y axis is not consisten.

• unequal spacing of lines

• none of the above

Which graph is misleading?

• graph 1

• graph 2

• graph 3

• graph 2 and 3