SCHOOL ENROLLMENT The table shows the number of students (in...

SCHOOL ENROLLMENT The table shows the number of students (in millions) enrolled in school in the United States by age. Make a table showing the total number of students enrolled for each given year. $$ \begin{array}{|c|c|c|c|c|c|} \hline \text { Age } & {1980} & {1985} & {1990} & {1995} & {2000} \\ \hline 14-15 \text { years old } & {7282} & {7362} & {6555} & {7651} & {8100} \\ \hline 16-17 \text { years old } & {7129} & {6654} & {6098} & {6997} & {7600} \\ \hline 18-19 \text { years old } & {3788} & {3716} & {4044} & {4274} & {4800} \\ \hline \end{array} $$

SCHOOL ENROLLMENT The table shows the number of students (in millions) enrolled in school in the United States by age. Make a table showing the total number of students enrolled for each given year.
$$
\begin{array}{|c|c|c|c|c|c|}
\hline \text { Age } & {1980} & {1985} & {1990} & {1995} & {2000} \\
\hline 14-15 \text { years old } & {7282} & {7362} & {6555} & {7651} & {8100} \\
\hline 16-17 \text { years old } & {7129} & {6654} & {6098} & {6997} & {7600} \\
\hline 18-19 \text { years old } & {3788} & {3716} & {4044} & {4274} & {4800} \\
\hline
\end{array}
$$

Key Concepts

Arithmetic Operations

Arithmetic operations, particularly addition, are fundamental for processing numerical data. Mastering these operations enables one to combine different data points accurately, such as adding student counts from various categories in a table.

Tabular Data Presentation

Tabular data presentation refers to organizing data into rows and columns, which allows for easy comparison and analysis. This format is commonly used to present large amounts of information clearly, such as enrollment numbers across several years.

Summation

Summation is the mathematical process of adding numbers together to obtain a total. In this context, it is used to calculate the overall number of students for each year by summing the counts from different age groups.

Data Interpretation

Data interpretation involves reading and understanding the information presented in tables and graphs. It is crucial for relating numerical data to real-world concepts and extracting meaningful insights, which is essential when analyzing keys like enrollments over different years.

Transcript

00:03 We have been given a table of student enrollment in the united states over the course of a 25 -year span.

00:16 And our task right now is to tell how many students total were enrolled in each of the years represented and make a table displaying that data.

00:27 So the first thing i'm going to do is set up my table that will be my answers or for my answers.

00:35 So i'm going to go ahead and make a new table and get it ready.

00:49 I'm sorry, i want that to be in blue to show that it's our answer table.

00:58 So we are just going to have the row across the top of the years.

01:05 So we have one, well, we have 1980, 1985, 1990, 1995, 1990, 1995, and 2000.

01:40 Those are our column.

01:41 Headings and then we are going to go ahead and write over here that this is total students and i'm just going to agree that as sts.

01:57 Okay so our job is just to give the total number of students.

02:02 What we have to do is add the number of students for each year.

02:06 So i'm just going to go ahead and use the fact that my numbers are already in columns and add them up.

02:12 So for 1980 i have eight and two is ten plus nine is nineteen right now the 1, 8 and 2 is 10, 11, 8 and 8 more is another 19, 2 plus 1 is 3, 4, and 7 is 11.

02:37 Carry the 1, 7 and 3 is 10 plus 7 is 17, plus 1 is 18.

02:47 So that total is 18 ,199, and these represent millions of students.

02:55 So over here, my answer for the column 1980, i'm going to write down 18 ,199.

03:10 Then i'm going to, i'm going to go ahead and switch colors just so that i can keep my number straight.

03:17 And i'm going to add up the number of students for 1985.

03:22 Six and four is 10 plus 2 is 12.

03:31 6 and 5 is 11, 12, 13.

03:39 6 plus 3 is 9 and 1 is 10 plus 7 is 17.

03:46 7, 8 plus 6 is 14 plus 3 is 17...