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4 years ago

Find the mean absolute deviation of the set of data. 4, 5, 8, 8, 10 (I also need on this)

Mathematics

1 answer:

Klio2033 [76]4 years ago

3 0

Answer:

MAD = 0

Step-by-step explanation:

When I calculated this by hand I got 0. To find the MAD:

1. You first need to find the mean of the numbers.

4 + 5 + 8 + 8 + 10 = 35

35/5 = 7

the mean value = 7

2. Then you must find the absolute value of the difference between each data value and the mean: |data value – mean|

(4 - 7) = -3

(5 - 7) = -2

(8 - 7) = 1

(10 - 7) = 3

3. Add the difference values up

(-3) + (-2) + 1 + 1 +3 = 0

4. Divide the sum of the absolute values of the differences by the number of data values.

0/5 = 0

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Naya [18.7K]

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3 years ago

Use the functions f(x)=7x3−3x2−x+14 f x = 7 x 3 - 3 x 2 - x + 14 and g(x)=2x3+2x+5 g x = 2 x 3 + 2 x + 5 as examples to show tha

Aneli [31]

Answer:

<h3>The given set of polynomials f(x) and g(x) are closed under subtraction.</h3>

Step-by-step explanation:

Given that the functions f ad g are defined by

$f(x)=7x^3-3x^2-x+14$ and $g(x)=2x^3+2x+5$ respectively.

<h3>To show that the set of polynomials is closed under subtraction :</h3>

Now subtract the given polynomials

$f(x)-g(x)=(f-g)(x)$

$=7x^3-3x^2-x+14-(2x^3+2x+5)$

$=7x^3-3x^2-x+14-2x^3-2x-5$

$=5x^3-3x^2-3x+9$

∴ $f(x)-g(x)=5x^3-3x^2-3x+9$

When subtracting the polynomials the variables and their exponents remains same only variation in their coefficients.

<h3>Hence the given polynomials f(x) and g(x) are closed under subtraction.</h3>

∴ $f(x)-g(x)=5x^3-3x^2-3x+9$ are closed under subtraction,

Hence showed.

3 0

3 years ago

Can someone please help me???

bazaltina [42]

A. (4)5 x (4)4 = 36 OR 4(5 x 4) = 36
b. No you would not. 5(5 x 4) = 45 which is out of your budget.

8 0

3 years ago

HELLLP ASAP

Kisachek [45]

Answer:

<u>1.</u> 20 boxes cost $36. The unit rate is 1:1.8 and when you multiply 1.8 by 5 you get 9. If you also multiply 1.8 by 20 you get 36.

<u>2.</u>He completes 12.5 pages in 200 minutes.

200 divided by 32

multiply that answer by 2

which is 12.5.

hope it helps!

3 0

3 years ago

Read 2 more answers

I NEED THIS QUICKLY BCUZ ITS A TIMED TEST

GuDViN [60]

Answer:

Repeating decimals are rational, the square root of 1/8 is not rational, 19/5 is rational, square root of 12 is not rational, the decimal is rational, square root of 49 is rational, and sqaure root of 4/25 is rational.

Step-by-step explanation:

Sorry if some of this is wrong :(

4 0

3 years ago