1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dvinal [7]
3 years ago
15

Using the following data, calculate the mean absolute deviation: 7 2 8 5 9 9 5 6 8 1 What is the mean absolute deviation for the

se data? (4 points)
A. 2.2
B. 6
C. 6.5
D. 8
Mathematics
2 answers:
Rufina [12.5K]3 years ago
8 0

Answer:

Option A - 2.2

Step-by-step explanation:

Given : Data  7, 2, 8, 5, 9, 9, 5, 6, 8, 1.

To find : What is the mean absolute deviation for these data?

Solution :

Step 1 - Calculate the mean of the data,

M=\frac{\sum x_n}{n}

M=\frac{7+2+8+5+9 +9+5+6+8+1}{10}

M=\frac{60}{10}

M=6

The mean is 6.

Step 2 - Calculate the distance between each data point and the mean.

Data points     Distance from mean

 7                        |7-6| = 1

 2                        |2-6| = 4

 8                        |8-6| = 2

 5                        |5-6| = 1

 9                        |9-6| = 3

 9                        |9-6| = 3

 5                        |5-6| = 1

 6                        |6-6| = 0

 8                        |8-6| = 2

 1                        |1-6| = 5

Step 3 - Add all the terms of distance from mean

X=1+4+2+1+3+3+1+0+2+5=22

Step 4 - Apply mean absolute deviation formula,

MAD=\frac{\sum X}{n}

MAD=\frac{22}{10}

MAD=2.2

Therefore, Option A is correct.

The mean absolute deviation is 2.2.

erica [24]3 years ago
7 0
I believe 2.2  is the answer.
You might be interested in
A fence is to be built to enclose a rectangular area of 1800 square feet. The fence along three sides is to be made of material
drek231 [11]

Answer:

length = 60 foot, width = 30 foot

Step-by-step explanation:

Area of rectangular part, A = 1800 ft²

Cost of fencing three sides is $ 6 per foot and cost of one side fencing is $18 per foot.

Let the length of the rectangle is l and the width of the rectangle is W.

Area = Length x width

A = L x W

1800 = L x W ...... (1)

Total cost of fencing, C = 6 x ( L + W + L) + 18 x W

C = 6 (2L + W) + 18 W

C = 12 L + 24 W

Substitute the value of W from equation (1), W=\frac{1800}{L} in equation (2)

C=12L+24\times \frac{1800}{L}

C=12L+\frac{43200}{L}

Differentiate both sides with respect to L:

\frac{dC}{dL}=12-\frac{43200}{L^{2}}

Put it equal to zero for maxima and minima

12-\frac{43200}{L^{2}}=0

L = 60 foot

and W = 30 foot

So, the costing is minimum for length = 60 foot and the width = 30 foot.

4 0
3 years ago
3.9t + 5.9t =<br><br><br><br><br> Sum one pls answer!!!!
MissTica

Answer:

9.8t

Step-by-step explanation:

3.9t + 5.9t = 9.8t

8 0
3 years ago
Read 2 more answers
What integer is the opposite of 1?
Slav-nsk [51]
The opposite of this problem is -1
8 0
3 years ago
Read 2 more answers
Someone Plz help me
shepuryov [24]

Using the tables to answer the question, the correct option is D.

Only table B represents a function

A relation/table will represent a function if each value of x is attached to a unique value of y.

That is, no value of x must be mapped to more than one value of y.

By considering the tables represented

Set A = {(-5, 2), (-8, 5), (-5, 8)}

As clearly shown above, when x = -5, y = 2 and 8. This means that there are more than 1 value of y for a single value of x, therefore, table A does not represent a function.

Set B = {(-5, 2), (-8, 5), (-11, 2)}

As shown above, all values of x have different values of y. Therefore, table B represents a function.

Learn more here: brainly.com/question/25902874

5 0
2 years ago
X + y = 0
lisabon 2012 [21]

Answer:

C

Step-by-step explanation:

given the 2 equations

x + y = 0 → (1)

5x + 3y = - 8 → (2)

Rearrange (1) expressing x in terms of y by subtracting y from both sides

x = - y → (3)

Substitute x = - y into (2)

5(- y) + 3y = - 8, that is

- 5y + 3y = - 8

- 2y = - 8 ( divide both sides by - 2 )

y = 4

Substitute y = 4 into (3) for corresponding value of x

x = - y = - 4

Solution is (- 4, 4 ) → C

4 0
3 years ago
Other questions:
  • Joe has 17 coins, nickels and dimes, that total up to $1.25. How many nickels does he have?
    6·1 answer
  • For an exponential function in the form of y=ab to the power of x , if b is between 0 and 1, what happens to the graph of the fu
    9·1 answer
  • I need help again thanks it's the picture ​
    8·1 answer
  • Hadley has a 1/2 kg of popcorn she divides the popcorn into three equal bags how many kilograms of popcorn with each bag
    15·1 answer
  • PLEASE HELP!!!!!!!
    8·2 answers
  • SOLVE THE EQUATION 2X - 4 = 16​
    6·2 answers
  • Pythagorean Theorem to solve for x. If the hypnoses is 10 m, and one leg is 6 m. Find the other leg x
    9·1 answer
  • Which of the following represents x = 1/3y written in general form?
    13·2 answers
  • Find the equation of the line slope =-4 through (-2,9)
    12·1 answer
  • Help PLS!!! DONT MAKE ANY CAP PLEASE!! I don't understand this problem.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!