The enrollments in the four elementary schools of a district are 278,

153, 215, and 198 students. What is the mean enrollment number?

do I add and then divide to get the mean number 278+153+215+198=844/4=211

is the mean number is 211?

211

thank you

The answer is 211.

But, you put the numbers in order from least to greatest 1st always, then add them all and devide by the number of numbers ...... 153+198+215+278= 844/4= 211

To find the mean (average) enrollment number, you need to add up all the enrollments and divide by the total number of schools.

In this case, you have enrollments for four elementary schools: 278, 153, 215, and 198 students. To find the mean enrollment number, add up these enrollments:

278 + 153 + 215 + 198 = 844

Now, divide the total enrollment (844) by the number of schools (4) to find the mean:

844 / 4 = 211

Therefore, the mean enrollment number is 211 students.