The following data tracks the number of deer in a wild life...

The following data tracks the number of deer in a wild life range. Year: 2000 2003 2007 2011 2015 2018 Pop: 1501 1706 1775 2140 2290 2525 Questions Q4 through Q7 are based on this data. First, use the data for the years 2003 and 2018 to predict the number of deer in 2020. Round the answer to the nearest whole number, i.e. for 3045.3 write 3045. Using the graph provided, pick the two data points that result in the greatest slope. Use this line to roughly estimate the population of deer in 2021. You only need to be accurate to within about 100 deer on either side, so you can do it graphically. Use the two data points which give the lowest slope and use the line through them to graphically estimate the deer population in 2021. Again, you just have to be within about 100 deer on either side.

Transcript

00:01 Okay, so it says the following data tracks the number of deer in wildlife range.

00:07 So it goes from year 2000 to 2018.

00:12 So i started, i put year 2000 as zero and then year 2018 is 18 and then i have the population of the deer.

00:22 First use the data from years 2003 to 2018 to predict the number of deer in 2020.

00:28 Day.

00:30 So first thing i'm going to do is i'm going to make a scatter plot and in order to do this prediction and i'm using excel and here's my scatter plot and i'm going to insert a trend line for this to help me make my prediction.

00:46 And here's my equation and i'm going to just bold this and make it bigger.

00:56 So that way it's easily able to be seen.

01:01 So my equation is y equals 55 .579x plus 1489 .3.

01:12 And so i need to figure out how many deer that they're going to be approximately in 2018.

01:19 So i'm going to show you how i'm going to do this.

01:22 Oops.

01:23 Slide show and just make this bigger.

01:27 Okay.

01:27 So using this equation of my trend line, 55 .579x plus 1 ,489 .3, i'm going to put in for x, i'm going to put 20 to symbolify the year 2020.

01:51 So 55 .579 times 20 plus 1 ,000489 times 20 plus 1 ,480 .8 .000.

01:57 And so i'm going to do 55 .579 times 20 and that is 1 ,111 .58 plus 1 ,489 .3 and that is 2 ,600 .88.

02:24 And it wants you to round it to the nearest whole number.