Practical Assignment

Assignment 1

• Observe carefully the visualization.
• What is the difference between the two charts?

Assignment 2

Four out of five dentists recommend Trident to their patients who chew gum!!

Think about sample size in the real world. 

Think about the longtime Trident gum

commercial tagline. 

• What is really being said here? 
• What sample size would make you feel more confident about this statement? 
• Can you think of any other commercials or brands that use sample sizes to promote customer confidence?

Assignment 3

Is the data what we think it is?

Let’s say that the unemployment rate in our country is 13%.

Now think about:

• Does it really mean that 13%of the population is unemployed?
• Who is included?
• What if a person works only a few months out of the year?
• What if they work multiple part-time jobs at once?