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lozanna [386]
3 years ago
13

What is the mean absolute deviation for 545 620 775 775 810 905 950 and 1120

Mathematics
1 answer:
zavuch27 [327]3 years ago
7 0
To solve this question, we know we have to find the Mean Absolute Deviation. That means that we have to add all the numbers that we were given, find the mean of them, find how much all of the numbers stray away from the mean, and then find the average of how far these numbers stray away from the mean. 

The first step is to find the mean. 
\frac{545 + 620 + 775 + 775 + 810  + 905 + 950 + 1120}{8}=
=\frac{6500}{8}=
=812.5      That means the mean is 812.5. Now we need to find how much each of the values deviates from the mean (for simplicity's sake, I will use 813 as the mean). 

545 deviates 268, 620 deviates 193, 775 deviates 38, 775 deviates 38, 810 deviates 3, 905 deviates 92, 950 deviates 137, and 1120 deviates 307. Now we need to find the average of these quantities. After doing all the math, one can figure out that the average for these numbers is 134.5, meaning that the Mean Absolute Deviation for these numbers is 134.5.

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In a 45 45 90 right angle what is the ratio of the length of one leg to the length of the other
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5 0
3 years ago
Kiran says, "I bought 2.5 pounds of red and yellow lentils. Both were $1.80 per pound. I spent a total of $4.05." Write a system
Dmitry_Shevchenko [17]

Answer:

The system of equations is given as:

x + y = 2.5 .... Equation 1

1.8x + 1.8y = 4.05....Equation 2

Step-by-step explanation:

Kiran says, "I bought 2.5 pounds of red and yellow lentils. Both were $1.80 per pound. I spent a total of $4.05

Let

x represent red lentils

y represent yellow lentils.

x + y = 2.5 .... Equation 1

x = 2.5 - y

$1.80 × x + $1.80 × y = $4.05

1.80x + 1.80y = 4.05....Equation 2

The system of equations is given as:

x + y = 2.5 .... Equation 1

1.8x + 1.8y = 4.05....Equation 2

6 0
3 years ago
You are in charge of purchases at the student-run used-book supply program at your college, and you must decide how many introdu
mariarad [96]

Answer:

  • Calculus texts: 600
  • History texts: 0
  • Marketing texts: 0

Step-by-step explanation:

Each Calculus text returns $10/2 = $5 per unit of shelf space. For History and Marketing texts, the respective numbers are $4/1 = $4 per unit, and $8/4 = $2 per unit. Using 1200 units of shelf space for 600 Calculus texts returns ...

  $5/unit × 1200 units = $6000 . . . profit

Any other use of units of shelf space will reduce profit.

7 0
3 years ago
charlene has eight more dollars than Megan. Together they have $86.00. Which equiation can be used to determine the amount of mo
Paul [167]

Answer:

Megan has 35.00 dollars.

Step-by-step explanation:

Divide 86.00 by 2 which equals 43.00.  Next, minus 8 from the 43.00 and you will get what Megan has.  Megan has 35.00 dollars.

I hope this helps!

8 0
3 years ago
Find the value (64)3/2
faltersainse [42]
(64)^3/2 = (sqrt(64))^3 = 8^3 = 512.
3 0
3 years ago
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