Question

a local sporting goods store surveyed 80 people about their preferred sports activity. complete this table. be prepared to share your thinking. activity rollerblading football running soccer basketball number of people surveyed 16 14 percent of people surveyed 10% 5% several students are surveyed about whether they prefer handwriting or typing assignments. they are asked whether they prefer using a computer or a cell phone to look up information. the survey included 100 different students. activity 1: study preferences activity 2: a human two - way table complete the two - way table about the level of sleep. how many students prefer typing assignments and get 7 hours or more of sleep? less than 7 hours 7 hours or more total total

Explanation:

Step1: Calculate number of people for Rollerblading

Since 10% of 80 people surveyed prefer rollerblading, we use the formula $n = p\times N$, where $p = 0.1$ and $N = 80$. So $n=0.1\times80 = 8$.

Step2: Calculate percentage for Football

The number of people who prefer football is 16 out of 80. The percentage $p=\frac{16}{80}\times100\%=20\%$.

Step3: Calculate number of people for Running

Since 5% of 80 people surveyed prefer running, using the formula $n = p\times N$ with $p = 0.05$ and $N = 80$, we get $n=0.05\times80 = 4$.

Step4: Calculate percentage for Soccer

The number of people who prefer soccer is 14 out of 80. The percentage $p=\frac{14}{80}\times100\% = 17.5\%$.

Step5: Calculate number of people for Basketball

Let the number of people who prefer basketball be $x$. The sum of all the number - of - people values should equal 80. We know the values for rollerblading (8), football (16), running (4), and soccer (14). So $x=80-(8 + 16+4 + 14)=38$. The percentage for basketball is $\frac{38}{80}\times100\% = 47.5\%$.

Activity	Percent of surveyed people	Number of surveyed people
Football	20%	16
Running	5%	4
Soccer	17.5%	14
Basketball	47.5%	38

Answer:

Activity	Percent of surveyed people	Number of surveyed people
Football	20%	16
Running	5%	4
Soccer	17.5%	14
Basketball	47.5%	38