Math help fast please asap!!!!

Question

1. A public opinion survey explored the relationship between age and support for increasing the minimum wage. The results are found in the following two-way frequency table. 

a. Complete the two-way frequency table below:

	For	Against	No Opinion	Total
Ages 21 - 40		20	5	50
Ages 41 - 60	30		15
Over 60	50	20		75
Total		70	25	200

b. Create a two-way relative frequency table that summarizes the data from the table.  

	For	Against	No Opinion	Total
Ages 21 - 40
Ages 41 - 60
Over 60
Total

Use the two-way frequency table and the relative frequency table to answer the following questions:

c. Out of the people that have no opinion, what percentage is over 60 years old?

 

d. What percentage of people want to increase minimum wage? 

 

e. How many people over 60 are against increasing the minimum wage?

 

f. For ages 21-60 how many were for increasing the minimum wage?

 

g. What percent of people over 60 are against or have no opinion? 

Answer 1

Hi, the first step you want to take is to fill out the missing numbers in the first chart.

For example, you know in the first row that there are a Total of 50 people. Of those 50, 5 have No Opinion and 20 are Against, which means 25 people must be For increasing minimum wage.

Continue using that kind of logic to fill out the rest of the chart.

The second chart is concerned with the relative frequency (or ratio of each value compared to the total value). In this chart your answers are going to be in the form of decimals or percents (as opposed to the actual count.)

To fill out this chart, take the value of each box in the first chart and divide it by the total number of people in the sample. In this sample, the total number of people is 200 (see the box on the bottom right of the first chart.)

So for example, the first box of the frequency table, (For, Ages 21-40) we deduced that it's 25. To fill in the box on the relative frequency chart you do 25 ÷ 200. You will get .125.

Fill out the rest of the chart the same way. (Divide each of the numbers in the first chart by 200)

Once you have the 2 charts filled out, the questions should be relatively simple.

For questions that ask for the percent, just take the numbers from the relative frequency chart and multiply it by 100. That will give you the percent.

Let me know if you have any questions!