Imagine you’ve heard an ad that states something like “Four out of five dentists recommend using Product X.” a. Which of the following statistics is this statement most likely based on? ·         When...

Imagine you’ve heard an ad that states something like “Four out of five dentists recommend using Product X.”

a. Which of the following statistics is this statement most likely based on?

·         When they asked five dentists if they recommend Product X, the first four said “yes” and the last one said “no.”

·         When they asked a sample of dentists if they recommend Product X, 80% of the sample said “yes.”

·         When they surveyed a sample of dentists, 80% of them said they would use Product X.

b. What other information might you want to know before you decide if you want to use Product X?