hello, would you please help me check my answers for question 2, 3 and 4? I really apreciate that! The table in attachment gives the data from historical election percent participation for the 18-24- year-old age group in US presidential elections from 1964 to 2012. For example the point (16, 40) represents the year 1980, x = 16 = 1980 – 1964, which had a participation rate of 40% for the 18-24-year-old age group in US presidential election. Type up your responses to the following 6 parts to this problem. There is no need to type the questions, just your responses, which can include screen shots. Create a scatter plot for the percent of participation of the 18-24-year-old group, y, as a function of years after 1964, x, using Desmos. See the video below for a review of how to create a scatter plot in Desmos. Create a linear model of the trend for the percent of participation of the 18-24-year-old group, y, as a function of years after 1964, x, using Desmos. Here is a video reviewing how to create a linear model in Desmos . . .   Give your model in slope-intercept form, rounding to one decimal place. 3. Interpret the model describing what the slope and y-intercept mean in this situation, if anything. 4. Find the participation level for 2020, that is, what the model predicts for x = 56.

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hello, would you please help me check my answers for question 2, 3 and 4? I really apreciate that!

The table in attachment gives the data from historical election percent participation for the 18-24- year-old age group in US presidential elections from 1964 to 2012.

For example the point (16, 40) represents the year 1980, x = 16 = 1980 – 1964, which had a participation rate of 40% for the 18-24-year-old age group in US presidential election.

Type up your responses to the following 6 parts to this problem. There is no need to type the questions, just your responses, which can include screen shots.

  1. Create a scatter plot for the percent of participation of the 18-24-year-old group, y, as a function of years after 1964, x, using Desmos. See the video below for a review of how to create a scatter plot in Desmos.

  2. Create a linear model of the trend for the percent of participation of the 18-24-year-old group, y, as a function of years after 1964, x, using Desmos. Here is a video reviewing how to create a linear model in Desmos . . .

 

Give your model in slope-intercept form, rounding to one decimal place.

3. Interpret the model describing what the slope and y-intercept mean in this situation, if

anything.

4. Find the participation level for 2020, that is, what the model predicts for x = 56.

 

my answers:

2. Y= -0.2x+47.5

 

3. Y intercept= (0, 47.5)

 

Slope=  m= -0.2/1,  if we increase one year the percentage will decrease 0.2%.

4. X=56 years after 1964.

Y= -0.2(56) + 47.5

Y= 36.3

I just want to make sure they are correct. 

 
United States Election Results - 18 to 24 Years Old
Year
1964
51.0
1968
4
50.0
1972
8.
49.0
1976
12
42.0
1980
16
40.0
1984
20
42.0
1988
24
36.0
1992
28
44.0
1996
32
32.0
2000
36
32.0
2004
40
43.0
2008
44
45.0
2012
48
38.0
X = years after 1964
y = percent of eligible voters who voted
Transcribed Image Text:United States Election Results - 18 to 24 Years Old Year 1964 51.0 1968 4 50.0 1972 8. 49.0 1976 12 42.0 1980 16 40.0 1984 20 42.0 1988 24 36.0 1992 28 44.0 1996 32 32.0 2000 36 32.0 2004 40 43.0 2008 44 45.0 2012 48 38.0 X = years after 1964 y = percent of eligible voters who voted
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