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posledela
3 years ago
14

For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard

Mathematics
1 answer:
stich3 [128]3 years ago
5 0

Answer:

4.53

Step-by-step explanation:

Given the data :

4, 5, 10, 11, 15

The mean = 9

The standard deviation of a sample :

s = √[Σ(x - mean)²/(n-1)]

s = √[((4-9)² + (5-9)²+(10-9)² + (11-9)² + (15-9)²) / (5-1)]

s = √(25+16+1+4+36)/4

s = √20.5

s = 4.527

s = 4.53

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nataly862011 [7]

Answer:

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Step-by-step explanation:

Perimeter of rectangle is P = 2 (l +w)

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l = 78

3 0
3 years ago
Find the equation of a circle whose endpoints of the diameter are (15, - 3) and (7,3). The equation of the circle is (Simplify y
Nana76 [90]

Answer:

(x - 11)² + y² = 25

Step-by-step explanation:

First find the center

O = ( (15 +7 / 2), (-3 + 3)/2 )

O = (11, 0)

Then find the radius squared

use the distance formula from the center to either end point of the diameter

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r² = 16 + 9

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Formula for circle

(x - h)² + (y - k)² = r²

(h, k) is the center = (11, 0)

The equation is

(x - 11)² + y² = 25

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3 years ago
(NO FAKE LINKS PLS) Use the geometric mean to find the value of e
dem82 [27]

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3 years ago
If a ball rotates 110 degrees in 8 seconds, how many degrees does it rotate in 32 seconds?
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