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-BARSIC- [3]
3 years ago
5

The mean absolute deviation for 1,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,4,5

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0

Answer:

7/10

Step-by-step explanation:

To find the MAD or mean of absolute deviation, we first have to find the mean.

Part I. Finding the mean.

To find the mean we add all the numbers up and divide it by the total number of numbers.

So we get:

(1+2+2+2+3+3+3+3+3+3+3+3+4+4+4+4+4+4+4+5) as our sum. This adds up to a total of 60. Since we have a total of 20 numbers, we divide 60 by 20 and get 3. So now we need to find the MAD.

Part II. Finding the MAD.

To find the MAD, we take the absolute value of the mean minus the numbers and divide that by the number of numbers. So we get the MAD to be 14/20 or 7/10.

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zubka84 [21]

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y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-8, -8) and (-7, 9). Substitute to the formula of a slope:

m=\dfrac{9-(-8)}{-7-(-8)}=\dfrac{17}{1}=17

Put the coordinates of the point (-7, 9) and the value of slope to the point-slope formula:

y-9=17(x-(-7))\\\\\boxed{y-9=17(x+7)}

6 0
3 years ago
Round 0.0695712 to 1 significant figure
lys-0071 [83]

It would be 7x10^-2

That number would be rounded to 0.07

4 0
3 years ago
Solve the equation<br> -2x +8 = -10<br><br> x/-5 + -15 = -22
ser-zykov [4K]
Answer to first one is X = 9
Answer to second one is X = 35
8 0
3 years ago
A shop sold white, pink and red T-shirts. 24% of the T-shirts were white. There were 198 more pink than white T-shirts. The rema
DerKrebs [107]

No. of pink T-shirts was 342

<h3>How to solve it?</h3>

Given: 24% of the T-shirts were white

Let, total number of T-shirts be x

According to question,

Total no. of white T-shirts = \frac{24x}{100}

Total No. of pink T-shirt =  \frac{24x}{100} + 198

Total No. of red T-shirts = 114

According to the question:

\frac{24x}{100} + \frac{24x}{100}+ 198 + 114 = x

312 = x - \frac{48x}{100}

312 = \frac{52x}{100}

x =\frac{312*100}{52}

x = 600

so No. of pink T-shirts :

=\frac{24*600}{100}+198

= 144 + 198

= 342

Hence total No. of pink T-shirts was 342.

To learn more about Linear equations in one variable visit:

brainly.com/question/85774

#SPJ4

7 0
2 years ago
Which of the following is equivalent to the expression below?<br>(3x2 + 2x-8)-(2x2-4x+7)​
ad-work [718]

Answer:

A. x^2+6x-15

Step-by-step explanation:

(3x^2+2x-8)-(2x^2-4x+7) distribute the negative sign

3x^2+2x-8-2x^2+4x-7 combine like terms and simplify leaves us with the answer;

x^2+6x-15

6 0
3 years ago
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