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zhannawk [14.2K]
2 years ago
10

What is the mean absolute deviation of astroids data to answer the question first find the mean next fill in the table for the a

bsolute deviation of each score in a data set from the mean then find the sum of the deviations finally use the sum of the absolute deviations to find the mean of the absolute deviation 15 20 25 15 0 15 30 40 35 20 15 25 30 10 5
Mathematics
1 answer:
skelet666 [1.2K]2 years ago
3 0

Answer:

8.6666666666667 is the answer

Step-by-step explanation:

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The 20 tallest buildings in the world have an average height of 1,667.25 feet, with a standard deviation of 318.31 feet. The Zif
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Answer:

Marina, Wuhan center, Zifeng Tower , Shangai Tower

Step-by-step explanation:

Using the z-scores of the Shangai tower and the Marina, we can calculate their heights

Mathematically, the z-score or standard score can be calculated as follows

Zscore =  X - μ/σ

where σ and μ represents the standard deviation and the population mean respectively.

For Shaghai Tower ;

1.27 = (X - 1667.25)/318.31

318.31 × 1.27 = X - 1667.25

404.25 = X - 1667.25

X = 1667.25 + 404.25 = 2071.50

The height of the Shaghai Tower is 2071.50 feet

For Marina, we use the same procedure;

-0.84 = (X - 1667.25)/318.31

318.31 × -0.84 = X - 1667.25

-267.38 = X - 1667.25

X = 1667.25 - 267.38 = 1399.87

The height of Marina building is 1399.87

Listing the buildings' height in ascending order we have; Marina, Wuhan center, Zifeng Tower , Shangai Tower

The reasoning behind this can be mathematically explained in terms of the z-score. The standard score of the heights of the building give us an insight as to how tall the buildings can be.

Since they are in the same population i.e building heights, the higher the z-score, the higher the height of the building. A positive z-score indicates a height taller than the average while a negative z-score indicate a height lower than the average height which is the mean

6 0
3 years ago
Solve the system of linear equations using elimination.
N76 [4]

Answer:

C (-2,1)

Step-by-step explanation:

−2x − y = 3 (1)

−9x − y = 17 (2)

(1) y = -2x - 3

(2) y = -9x - 17

-2x - 3 = -9x - 17

7x = -14

x = -2

y = -2(-2) - 3

y = 4 - 3

y = 1

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3 years ago
Word problem: Ms.Perez often gives a short one problem quiz during her 48 minute class. If a student is out of the room at the t
shepuryov [24]
1/15 because it’s 1 in every 15 minutes.
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3 years ago
the company started with 120 employees the first year, and added 30 employees each year for five years?​
katrin2010 [14]
It would be 270 because 30x5+120=270
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3 years ago
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What is the experimental probability of a coin toss results in two heads showing?
lorasvet [3.4K]

Answer:

1 in 4 chance

25% chance

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3 years ago
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