Question

show what you know! a study was conducted to compare phone usage between teenagers and adults. the results are shown in the two - way table below: based on the data, which of the following statements is true? the majority of adults have high phone usage. the total number of people with high phone usage is lower than those with low usage. a higher percentage of teenagers have high phone usage compared to adults.

Explanation:

Step1: Analyze the first statement

For adults, high - phone usage is \(20\) and total adults is \(70\). Since \(20<35\) (half of \(70\)), the majority of adults do not have high phone usage.

Step2: Analyze the second statement

The total number of people with high phone usage is \(90\) and with low phone usage is \(80\). Since \(90 > 80\), the total number of people with high phone usage is not lower than those with low usage.

Step3: Analyze the third statement

For teenagers, the percentage of high - phone usage is \(\frac{70}{100}\times100\%=70\%\). For adults, the percentage of high - phone usage is \(\frac{20}{70}\times100\%\approx28.6\%\). So a higher percentage of teenagers have high phone usage compared to adults.

Answer:

A higher percentage of teenagers have high phone usage compared to adults.