Question

In 2007, 4% of people buying new cell phones purchased a Bluetooth earpiece during the same transaction. In 2012, 28% of people buying new cell phones purchased a Bluetooth earpiece during the same transaction. Of the following choices, which two statements about the growth of Bluetooth sales are true?

Option 1: Bluetooth sales decreased from 2007 to 2012.
Option 2: The percentage of people buying Bluetooth earpieces increased over the years.
Option 3: The majority of people buying new cell phones did not purchase a Bluetooth earpiece in 2012.
Option 4: The growth in Bluetooth sales was insignificant.

Answer 1

The growth of Bluetooth earpiece sales can be characterized by a significant increase from 4% to 28% between 2007 and 2012, and even with this increase, the majority of people did not purchase a Bluetooth earpiece in 2012.

Step-by-step explanation:

The question focuses on the analysis of statistics regarding the purchase of Bluetooth earpieces with new cell phones between the years 2007 and 2012. Considering the data provided, two statements can be concluded as true:

• The percentage of people buying Bluetooth earpieces increased over the years, from 4% in 2007 to 28% in 2012.
• The majority of people buying new cell phones did not purchase a Bluetooth earpiece even in 2012, since 28% is less than half, which would be required to be considered a majority.

Therefore, from the options given, the two true statements are Option 2 and Option 3. This also means that Option 1 stating 'Bluetooth sales decreased from 2007 to 2012' is false given the percentage increased, and Option 4 claiming 'The growth in Bluetooth sales was insignificant' is false because an increase from 4% to 28% is significant growth.