The error variance can be Illustrated as σ^2 = E(μ^2) = Var(μ) = (1/n) * ∑(y - (b0 + b1x))^2
How to illustrate the error variance?The simple linear regression model is of the form:
y = b₀ + b₁x + μ
y = the dependent variable
x = the independent variable
b₀ and b₁ = the parameters of the model, and μ is the error term.
The error term represents the difference between the observed value of the dependent variable and the value predicted by the model. In other words, it is the deviation of the observed y from the expected value of y, given the value of x.
The error variance, denoted by σ^2, is a measure of the spread of the error term. It is calculated as the average squared deviation of the error term from its mean value, which is zero:
σ^2 = E(μ^2) = Var(μ) = (1/n) * ∑(y - (b₀ + b₁x))^2
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Complete question
Given the simple linear regression model y=b0+b1xi+µ, derive the error variance.
PLEASEEE HELPPP ASAPPPPP WILL GIVE BRAINLISTT There is a large increase in the caribou population. Explain what might happen to the caribou and their resources.
193 - Which of the following items corresponds with blocking the transmission of infection through
eliminating the pathogenic factor?
a. Elimination of the disease
b. Eradication of the disease
c. Fighting against the disease
d. Management of the disease
Answer:
answer is A
Explanation:
purchased goods from laxman from Rs 60000
Answer:
dfgsdfg
Explanation:
srewt
help plsssssssssssssssssssssss
gusto moba magka pera online?madali lang yan
add moko sa fb:princess rhianna su
Answer:
Who you can choose in any picture
When can a bank repossess someone's car?
when the owner defaults on the loan payments
when the owner gets into an accident
when the owner cancels the insurance
when the owner buys a used car
Answer:
A
Explanation:
Technically, as soon as a credit account is delinquent, the lender can take action to repossess the property tied to the loan. In the case of a car loan, if you miss a payment, the bank could repossess the vehicle without notice.
They don't pay, it get's taken away!
Answer:
2nd one I think if I'm wrong my apologies:)
The only reason her husband did not consult her about his business was that she did not wait to be consulted. What role does the sentence playing in the excerpt?
Answer:
The sentence helps to define the personality and character of William Tavener's wife.
Explanation:
The Sentimentality of William Tavener is a short story about a Phlegmatic but hardworking man whose wife on the other hand was a choleric, and a domineering wife.
William Tavener's wife is also described as a good manager who was constantly on the move, spirited and practical. The phrase "she didn't wait to be consulted" meant she was very busy.
So the sentence does the job of portraying her nature and introducing her character to the reader.
Cheers
helpppppp plssssss ttttyyyy
Answer:
Weathering and Erosion
What about the Haiku inspires Noni? please help now and quick
Answer:
it has a pattern to follow
Explanation:
she wants a clear 1 2 3 step, which is why she likes math as said earlier. the haiku will "give her a structure to follow" or a pattern to follow.
Write two or more sentences to explain how climate change can affect plants and animals.
. {(-8, 7), (-8, -6), (-1, 7), (6, 4), (7, -8)} function o no
Answer:
it does
Explanation:
Combine the two ideas into a single sentence.
Country Q has an unemployment rate of 7% with GDP growth of .2 and -2% inflation over the past 12 month. What should be central bank of country Q do in response to these economic indicators?
The central bank of a country controls the amount of money in circulation in order to maintain the health of the economy. Banks can regulate the amount of money in circulation by manipulating interest rates.
What part do central banks play in a nation's economic system's stabilization?Economic and financial stability is largely dependent on central banks. In order to achieve low and stable inflation, they implement monetary policy. Following the global financial crisis, central banks have added more tools to their arsenals to address threats to financial stability and control fluctuating exchange rates.
What part does the central bank play in the growth of the economy?In developing nations, a central bank can be extremely important in creating the financial foundation for growth. A clear and significant activity that falls under this category is the development of local currency and the capital market.
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Typically, most high school students who are 16 or older work an average of _____ hours per week.A.5 to 10B.10 to 20C.3 to 5D.30 to 40
An architect wants to use the riser-tread formula to design a stairway with a total rise of 9 feet, a riser height between 7 and 8 inches, and an odd number of steps. With the architect’s constraints, which of the following must be the tread depth, in inches, of the stairway? (1 foot = 12 inches)
A) 7.2
B) 9.5
C) 10.6
D) 15
Answer:
Option C
The answer is 10.6
Explanation:
Here,
Total rise = 9 feet
Now, 1 foot = 12 inch
So, 9 x 12 inches = 108 inches
A riser height between 7 and 8 inches,
i.e., 8 ≤ h ≤ 7
Total riser = xh ...(1)
where x is the number of steps and h is the riser's height.
From equation (1),
x = Total riser ÷ h
Total riser = 108
h = 8 ≤ h ≤ 7
Thus,
x = 108/8 ≤ h ≤ 108/7
x = 14 ≤ h ≤ 15 ....(2)
Since the number of steps (x) is an odd number,
So, x = 15 [from equation (2)] (.°. 14 is not an odd number)
Also, from equation (1),
h = total riser/x
h = 108/x = 108/15 = 7.2 [it's between 7 and 8]
from riser-tread formula,
2h + d = 25
d = 25 - 2h
d = 25 - 2(7.2)
d = 25 - 14.4
d = 10.6
Thus, The answer is 10.6
-TheUnknownScientist
Answer:
Explanation:
The riser-tread formula states riser (R)+ tread (T) = 17 inches minimum, or 18 inches maximum.
Given R is between 7 - 8 inches, T must be between 9 - 11 inches. So the only choices within this range are B) 9.5 and C) 10.6.
As the number of steps must be odd:
for R between 7 - 8 inches, the total rise of 9 feet i.e. 108 inches requires -
108/7 = 15.4 ~ 16 steps to
108/8 = 13.5 ~ 14 steps
15 steps is an odd number between 14 and 16.
With 15 steps, R = 108/15 = 7.2"
For choice B, R + T = 7.2 + 9.5 = 16.7" which is short of the riser-thread formula.
For choice C, R + T = 7.2 + 10.6 = 17.8" which satisfies the riser-thread formula and is the correct answer.
Edit: I missed the riser-thread formula in this question has been defined as 2h + d = 25. So the above calculation was done with a different definition of the formula but arrived at the same answer.
A boat heading out to sea starts out at Point AA, at a horizontal distance of 1023 feet from a lighthouse/the shore. From that point, the boat’s crew measures the angle of elevation to the lighthouse’s beacon-light from that point to be 11^{\circ} ∘ . At some later time, the crew measures the angle of elevation from point BB to be 2^{\circ} ∘ . Find the distance from point AA to point BB. Round your answer to the nearest foot if necessary.
Answer:22bb square roots
Explanation:none
A boat heading out to sea starts out at Point AA, at a horizontal distance of 1023 feet from a lighthouse/the shore. The distance from point AA to point BB is -1114.01 feet.
What is the distance?Distance is a numerical or qualitative measurement of the distance between two objects or places.
The distance of point A from the lighthouse = 1023 feet
The angle of elevation from point A to the lighthouse = 11°
The angle of elevation from point B to the lighthouse = 2°
tanΘ = opposite side to angle / adjacent side to the angle
tan7° = height from sea to the lighthouse / 1023 feet
Height to the lighthouse = tan(11°) × 1023 feet
0.1944 x 1023 feet = 198.8712
For point B
tan3° = 198.8712 feet
Horizontal distance = 198.8712 / tan3°
tan3° = -2.1850
Horizontal distance = 198.8712 / -2.1850 = -91.0165
D = Horizontal distance from B to LH - Horizontal distance from A to LH
Distance from A to B
-91.0165 - 1023 feet = -1114.01
Therefore, the distance from point AA to point BB is -1114.01 feet.
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_____ offer bachelor's degrees.A.Community collegesB.Four-year collegesC.Early collegesD.Junior colleges
Answer:
B Four year colleges
Explanation:
thats how long it takes to get one
Match each sentence part to the question it answers.
Answer and Explanation:
Which sentence part includes the subject and main action?
Nani began to count syllables
Which sentence part tells when the action was performed?
After closing her eyes and exhaling
Which sentence part tells how the action was done?
Silently and perfectly
#teamtrees #PAW (Plant And Water)
PLEASEEE HELPPP ASAP I WILL GIVE BRAINLSIT There is pollution that has spilled into a lake. Explain why the birds who live on the lake are more likely to survive than the fish.
Answer:
You see birds can fly but fish cannot. Birds can breath outside of water but fish can't. So in this scenario birds have the advantage. Fish can't leave the water so they will be contaminated with the pollution. Birds can leave the water because they can fly to safety.