Question

MEDAL AND FAN FOR THE FIRST PERSON TO HELP ME

IMAGE IN CHAT

The dot plot below shows Angela's bowling scores for her last ten games.



What is the mean absolute deviation of the data set shown?

2

8

4

152

Answer 1

https://app109.studyisland.com/pics/150680no15.png

Answer 2

https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6-mad/e/calculating-the-mean-absolute-deviation--mad-

this will really help, just click "hint" and it will tell you how to do it :D

Answer 3

nmv i think the hints are already shown, but if you need more help, i will be happy to help!

Answer 4

ok one moment

Answer 5

can i have more help please

Answer 6

@MysticFury

Answer 7

okay so what we need to do is find the mean first, we do this by adding up all the numbers like we did in the previous question then dividing by how many numbers there are, can you do this for me ?

Answer 8

my session timed out

Answer 9

we have
146 + 146 + 148 + 150 + 150 + 154 + 156 + 156 + 156 + 158 = ?

then divide the total by 10 since thats how many numbers we have

Answer 10

152

Answer 11

so its D

Answer 12

correct , now we found our mean, but we need the mean absolute deviation so we need to take the original number and minus it from 152 like this

152 - 146 = 6

152 - 146 = 6

152 - 148 = 4

152 - 150 = 2

152 - 150 = 2

152 - 154 = 2

152 - 156 = 4, 4 and 4 (because theres 3)
3 of those ^

158 - 152 = 6

Answer 13

ok

Answer 14

thanks

Answer 15

D might not be correct though so we need to keep going

Answer 16

ok my session timed out tho

Answer 17

after that we find the mean of those numbers,
6 + 6 + 4 + 2 + 2 + 2 + 4 + 4 + 4 + 6 = 40
divide by how many numbers
40 divided by 10 = 4

so our Mean Absolute Deviation is 4

understand it a little better now?

Answer 18

are you in k12?

Answer 19

yep

Answer 20

ah the questions will stay the same so, you can just go re put in the answers ;)