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
german
3 years ago
7

The Gardener counted the numbers blooms on 10 flower bushes and then arrange the numbers from smallest to largest the numbers of

moons on each bush 4,4,6,6,7,8,8,8,9 and 10. The mean pf these measurements is 7
What is the mean absolute deviation?
A) 1.2
B)1.6
C)2.0
D) 12.0
Mathematics
2 answers:
lakkis [162]3 years ago
6 0
The formula of Mean Absolute Deviation is:

MAD = ∑|x- x̄|
            ----------     
                 n

Where:
x = data value
<span>x̄ = mean
</span>n = number of observations

You already have 2 values given which is the mean (7) and the number of observations (10). First you need to solve for the sum of x - <span> x̄. Let's put that in a table to get a better picture:

x             <span>|x-</span></span>x̄|
<span>4        |4-7| =   3
4</span>        |4-7| =   3<span>
6</span>        |6-7| =   1<span>
6</span>        |6-7| =   1<span>
7</span>        |7-7| =   0<span>
8</span>        |8-7| =   1<span>
8</span>        |8-7| =   1<span>
8</span>        |8-7| =   1<span>
9</span>        |9-7| =   2<span>
10</span>      |10-7| = 3

Now get the sum of the values in the column |x-x̄|. 
3+3+1+1+0+1+1+1+2+3 = 16

Now that you have the sum you can input it into the first formula:
MAD = ∑|x- x̄|
            ----------      
                 n
MAD =     16
            ----------      
                 10

MAD = 1.6

The answer is then B. 
lina2011 [118]3 years ago
5 0

Answer:

your answer should be B

i just took the test this is correct

You might be interested in
11 is what percent of 300?
BabaBlast [244]

Answer: 11 is 3.667% of 300.

Step-by-step explanation: The 3.667% of 300 is 11.001, this is the closest possible to 11.

P.D. Hope this helps!

7 0
2 years ago
Solve the equation by completing the square. Round to the nearest tenth, if necessary. Simplify your solutions and enter them fr
Slav-nsk [51]

Answer:

-1.1, 6.1

Step-by-step explanation:

-2X^2+10X+14=0

(-2X^2+10X+14)/-2=0

X^2-5X-7=0

Then use the quadratic formula because you can't factor

Fill in the equations and solve. One should have the plus and the other should have the minus and that's how you get the 2 different answers.

A=1

B=-5

C=-7

4 0
1 year ago
In 3 1/8 hours Aldo reads 7 1/2 chapters. What is the unit rate in chapters per hour ?
geniusboy [140]
Use a calculator

Just look up how to find unit rates and it should be easy
8 0
3 years ago
a store is offering a 20% discount on all sales over $50. If you purchase a shirt and a pair of leans for $62.50, what is the am
vodomira [7]

Answer:

you would receive 12.5% of the discount

Step-by-step explanation:

20% off of 62.50 is 50; so you would pay $50

7 0
3 years ago
HELPPP IF YOU CAN DO THISSSS (BRAINLIST) thank youuu
grigory [225]

Answer:

a) $50,880

b) $48

c) 1060

Step-by-step explanation:

a)

-320x^2 + 1920x + 48000 = 0

This is a parabola that opens downward. It has a maximum value. The maximum value occurs at x = -b/(2a)

x = -b/(2a) = (-1920)/(2(-320)) = 1920/640 = 3

The maximum revenue, y, is the value of the function evaluated at x = 3.

f(x) = -320x^2 + 1920x + 48000

f(-3) = -320(3)^2 + 1920(3) + 48000

f(-3) = 50,880

The maximum revenue is $50,880

b)

Since maximum revenue occurs at x = 3, and since x represents the number of $4 discounts, the discount is 3 * $4 = $12. The price is $60 - $12 = $48

c)

$50,880/$48 = 1060

3 0
3 years ago
Other questions:
  • BRAINLIEST!!PLEASE HELP ME!!
    12·1 answer
  • Working alone ryan can dig a 10ft by 10ft hole in five hours. castel can dig the same hole in six hours how long would it take t
    14·1 answer
  • Write a polynomial equation that is best represented by the graph. Please I really need help
    11·2 answers
  • Which undefined geometric term can be described as a one-dimensional set of points that has no beginning or end
    12·2 answers
  • On a gameboard spinner, Rachel won a prize on 8 out of 10 spins. Based on experimental
    6·1 answer
  • Tammy rents an apartment close to her school campus. The amount that she spends on rent is given by the equation r = 355m, where
    5·1 answer
  • [8-(-12)]÷(2x-2)-(-8)
    12·1 answer
  • Solve the equation for x.​
    13·1 answer
  • Last month, Hoa's dog ate 40 cans of dog food in 31 days. How many cans should Hoa buy to feed his dog for the next 6 days?
    12·2 answers
  • Find the product of 2/2 and 4/18 in simplest form. Also, determine whether the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!