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erastovalidia [21]
3 years ago
8

Concepts in probability and statistics

Mathematics
1 answer:
Sveta_85 [38]3 years ago
7 0
The first one, II ((((a aaaaaa word countttt aaa
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7.75-10°

Step-by-step explanation:

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A half the radius, or 1/2r
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<h2>C</h2>

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Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of ro
slamgirl [31]

For the regression equation and e the number of kilowatt-hours, in thousands, for a six-room house  is mathematically given as

Y = 1.33-0.667X and  5.3332

<h3>What is the number of kilowatt-hours, in thousands, for a six-room house?</h3>

Generally, the equation for the  standard deviation  is mathematically given as

sₓ =\sqrt{\frac{\sum\(X-\=X)^2}{n-1} }

= \sqrt{\frac{66.9}{10-1} }

= 2.72

s_y = \sqrt{\frac{36.4}{10-1} }

= 2.01

therefore correlation coff

r = \frac{44.6}{(10-1)(2.72)(2.01)}

r = 0.9038

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b = r_sy/sx

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 = 0.667

intercept

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a = 1.33

The regression equation is

Y = 1.33-0.667X

(b) number of kilowatts x = 6 house

Y = 1.33-0.667X

Y = 1.33-0.667(6)

 = 5.3332

Read more about Electric field

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6 0
2 years ago
What is -25 1/4 - 19.1 in decimal form? You must show the steps for converting the fraction to a decimal. then show your steps i
Leno4ka [110]

Answer:

-44.35

Step-by-step explanation:

1/4 = 0.25 (as 0.25 * 4 = 1)

-25 1/4 = -25.25

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7 0
3 years ago
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