~~~20 POINTS~~~
Please answer these two math questions for me :)
Answers
Answer 1
Answer:
Foreword
"Please tell Kat that Brainly gives half the points she selects to each user that answers the question."
The Answers
#1:
We are trying to find the MAD for each set of the teachers' grades. To find the MAD (again) find the mean of the teachers' grades. Then, take each of the teachers' grades and find the absolute value of the difference between that grade and the mean grade. Add the differences up, and divide the result by the number of teachers (10).
Do the first table first (first things first!). Find the mean by adding up the grades and dividing them by the number of teachers (10).
76 + 81 + 85 + 79 + 89 + 86 + 84 + 80 + 88 + 79 = 827
827/10 = 82.7
The mean grade for the first table is 82.7.
Now, we need to find the absolute value of the difference between each of the teachers' grades and the mean.
82.7 - 76 = 6.7
82.7 - 81 = 1.7
85 - 82.7 = 2.3
82.7 - 79 = 3.7
89 - 82.7 = 6.3
86 - 82.7 = 3.3
84 - 82.7 = 1.3
82.7 - 80 = 2.7
88 - 82.7 = 5.3
82.7 - 79 = 3.7
Now, we need to add up the result.
6.7 + 1.7 + 2.3 + 3.7 + 6.3 + 3.3 + 1.3 + 2.7 + 5.3 + 3.7 = 37
Now, we divide the result by the number of teachers.
37/10 = 3.7
So the MAD for the first table is 3.7.
Now we do the same thing for the second table.
79 + 82 + 84 + 81 + 77 + 85 + 82 + 80 + 78 + 83 = 811
811/10 = 81.1
Bad grades.
81.1 - 79 = 2.1
82 - 81.1 = 0.9
84 - 81.1 = 2.9
81.1 - 81 = 0.1
81.1 - 77 = 4.1
85 - 81.1 = 3.9
82 - 81.1 = 0.9
81.1 - 80 = 1.1
81.1 - 78 = 3.1
83 - 81.1 = 1.9
Add.
2.1 + 0.9 + 2.9 + 0.1 + 4.1 + 3.9 + 0.9 + 1.1 + 3.1 + 1.9 = 21
21/10=2.1
Now, we compare the MAD's. If the MAD for the second table is greater than the MAD for the first table, then the teachers have not improved/were sleeping. If not, then the teachers have improved/got lucky.
Hooray! They improved/got lucky, by 1.6 points to be precise.
#2:
Remember from the previous answer I gave (the other question you asked) the example with a MAD of 0? That's because they were all exactly on the mean (4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 40, 40/10 = 4, MAD = 0). Therefore, if the MAD of the teachers' grades was zero, that means they all got the same score! Hooray! Mission accomplished. Or the common core machine has succeeded in producing identical copies of teachers.
Backword
I hope you know what the MAD is now.
"Please tell Kat that Brainly gives half the points she selects to each user that answers the question."
The Answers
#1:
We are trying to find the MAD for each set of the teachers' grades. To find the MAD (again) find the mean of the teachers' grades. Then, take each of the teachers' grades and find the absolute value of the difference between that grade and the mean grade. Add the differences up, and divide the result by the number of teachers (10).
Do the first table first (first things first!). Find the mean by adding up the grades and dividing them by the number of teachers (10).
76 + 81 + 85 + 79 + 89 + 86 + 84 + 80 + 88 + 79 = 827
827/10 = 82.7
The mean grade for the first table is 82.7.
Now, we need to find the absolute value of the difference between each of the teachers' grades and the mean.
82.7 - 76 = 6.7
82.7 - 81 = 1.7
85 - 82.7 = 2.3
82.7 - 79 = 3.7
89 - 82.7 = 6.3
86 - 82.7 = 3.3
84 - 82.7 = 1.3
82.7 - 80 = 2.7
88 - 82.7 = 5.3
82.7 - 79 = 3.7
Now, we need to add up the result.
6.7 + 1.7 + 2.3 + 3.7 + 6.3 + 3.3 + 1.3 + 2.7 + 5.3 + 3.7 = 37
Now, we divide the result by the number of teachers.
37/10 = 3.7
So the MAD for the first table is 3.7.
Now we do the same thing for the second table.
79 + 82 + 84 + 81 + 77 + 85 + 82 + 80 + 78 + 83 = 811
811/10 = 81.1
Bad grades.
81.1 - 79 = 2.1
82 - 81.1 = 0.9
84 - 81.1 = 2.9
81.1 - 81 = 0.1
81.1 - 77 = 4.1
85 - 81.1 = 3.9
82 - 81.1 = 0.9
81.1 - 80 = 1.1
81.1 - 78 = 3.1
83 - 81.1 = 1.9
Add.
2.1 + 0.9 + 2.9 + 0.1 + 4.1 + 3.9 + 0.9 + 1.1 + 3.1 + 1.9 = 21
21/10=2.1
Now, we compare the MAD's. If the MAD for the second table is greater than the MAD for the first table, then the teachers have not improved/were sleeping. If not, then the teachers have improved/got lucky.
Hooray! They improved/got lucky, by 1.6 points to be precise.
#2:
Remember from the previous answer I gave (the other question you asked) the example with a MAD of 0? That's because they were all exactly on the mean (4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 40, 40/10 = 4, MAD = 0). Therefore, if the MAD of the teachers' grades was zero, that means they all got the same score! Hooray! Mission accomplished. Or the common core machine has succeeded in producing identical copies of teachers.
Backword
I hope you know what the MAD is now.
Related Questions
Plz, Help ASAP!Inequalities
In exercises 3-6, write the expression in terms of sine or cosineSin 22°Cos 56°Cos 15°Sin 37°
Graph of function f of x equals negative x squared plus 8 multiplied by x minus 15Function 2 f(x) = −x2 + 2x − 3 Function ____ has the larger maximum. (Put 1 or 2 in the blank space) Numerical Answers Expected!
3)_______ _______(s) because the denominator label is for a unit of one. Scale drawings incorporate the ratio as a factor---called the 4) _________ factor. This ratio determines if the original image is 5)_____________ or shrunk. If the Scale Factor is --6)________________ than 1 ; the original image is shrunk; Conversely, if the SF is >1, then the image is 7)_______________by that ratio. This is like when they dilate you pupils or when you hit the + symbol on the cell phone or computer screen. I beg yall help me out.....I am so done with life.
What is the value of the 4 in 1,574,833
In exercises 3-6, write the expression in terms of sine or cosineSin 22°Cos 56°Cos 15°Sin 37°
Graph of function f of x equals negative x squared plus 8 multiplied by x minus 15Function 2 f(x) = −x2 + 2x − 3 Function ____ has the larger maximum. (Put 1 or 2 in the blank space) Numerical Answers Expected!
3)_______ _______(s) because the denominator label is for a unit of one. Scale drawings incorporate the ratio as a factor---called the 4) _________ factor. This ratio determines if the original image is 5)_____________ or shrunk. If the Scale Factor is --6)________________ than 1 ; the original image is shrunk; Conversely, if the SF is >1, then the image is 7)_______________by that ratio. This is like when they dilate you pupils or when you hit the + symbol on the cell phone or computer screen. I beg yall help me out.....I am so done with life.
What is the value of the 4 in 1,574,833
A.2
B.7
C.10
D.20
Answers
The least common denominator is 10.
10 / 2 = 5
10 / 5 = 2
There isn't a smaller number that 2 and 5 can get into.
10 / 2 = 5
10 / 5 = 2
There isn't a smaller number that 2 and 5 can get into.
The answer is C hope you get a A++++++ on this test and have a great day :D
Answers
The answer would be “B” because if she was twice as old as her cousin then you would do “2k=e-9
e=k+4
e=k+4
Answers
It is C. Hope this helps. LOL
Answers
Answer:
Brenden colored more.
Explanation:
1
6
,
1
4
=
4
1
24
6
,
6
1
24
4
∴
1
4
>
1
6
Wouldn’t it be 1/25 because you just multiply
Answers
72= 2^3*3^2
Hope this helps~
Hope this helps~
The answer to this question should be 3x3x2x2x2 and when you did the times the answer will give you 72
Answers
.75 oranges per friend