In the context of the Exponential distribution with parameter β, the statistics βYn and 2nβYn are both pivotal quantities. They can be used to construct confidence intervals for β.
A pivotal quantity is a function of the data and a parameter that has a known distribution regardless of the parameter's true value. In this case, both βYn and 2nβYn are pivotal quantities because their distributions (Gamma and chi-squared, respectively) do not depend on the unknown parameter β.
To construct a 95% confidence interval for β using the first pivot, βYn, we can utilize the properties of the Gamma distribution. The interval will be of the form [a, b], where a and b are the lower and upper bounds determined based on the cumulative distribution function of the Gamma distribution. This interval represents a range of plausible values for the parameter β.
Similarly, to construct a 95% confidence interval using the second pivot, 2nβYn, we can employ the chi-squared distribution. The interval will have the form [c, d], where c and d are the lower and upper bounds determined based on the cumulative distribution function of the chi-squared distribution. This interval also represents a range of plausible values for β.
When comparing both intervals, considerations such as width, interpretability, and efficiency are important. The recommended interval would be the one that is narrower (smaller width) and easier to interpret. Additionally, the efficiency of the estimators used in constructing the intervals should be taken into account.
In conclusion, both pivotal quantities, βYn and 2nβYn, can be used to construct 95% confidence intervals for β. The choice between them depends on factors such as width, interpretability, and efficiency. A comprehensive analysis considering these factors will determine the most suitable interval to use.
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Question 3
0 / 20 pts
When Darrell went to bed, the temperature outside was 4 degrees below
zero (-4). When he woke up, the temperature was even colder. Select the
values that could represent the temperature when Darrell woke up?
-10°
A. -2
B. -6
C. -10
D. -0
E. -15
It’s multiple choice also
Find the Area of the composite figure below:
Answer:
24
Step-by-step explanation:
added all the sides hope this helps
HELP PLZ I'LL MARK BRAINLIEST!
Answer:
138.23
Step-by-step explanation:
A spinner has the numbers 11-20 on it. What is the probability that it will land on a multiple of 3?
Answer:
[tex]P(A) = \frac{3}{10}[/tex]
Step-by-step explanation:
Given
[tex]S = \{11,12,13,14,15,16,17,18,19,20\}[/tex]
Required
The probability of having a multiple of 3
Let the event of having a multiple of 3 be represented as: A
So:
[tex]A = \{12,15,18\}[/tex]
[tex]n(A) = 3[/tex]
So, the probability is:
[tex]P(A) = \frac{n(A)}{n(S)}[/tex]
Where
[tex]n(S) = 10[/tex] i.e. the sample size
So:
[tex]P(A) = \frac{n(A)}{n(S)}[/tex]
[tex]P(A) = \frac{3}{10}[/tex]
From a bag of 12kg flour, mother used 7 2/3 kg to bake cakes. How much flour reminded?
If you are given a 16 sided dice. What is the
probability that you get a number less than or
equal to 5?
Answer:
numbers less than 5 are 1,2,3,4 and equal to 5 is 5.
probability of less than 5 is 4/16
while equal to 5 is 1/16
or means additions; so its 4/16 +1/16=5/16
Please help.
Is algebra.
Answer to question 1 is D
answer to question 2 is A
Help me please
HELP ME PLEASEE
Answer:
21?i think
Step-by-step explanation:
ok sooooooo
cant you call carrot juice orange juice.
Answer:
yes cs its a orange juice
Step-by-step explanation:
Answer:
taking back the answer spot that is rightfully mine!
Step-by-step explanation:
A booster club sells raffle tickets • Before tickets go on sale to the public, 120 tickets are sold to student athletes. • After tickets go on sale to the public, the tickets sell at a constant rate for a total of 8 hours spread over I days. • At the end of this time, all tickets have been sold. If represents the hours since tickets go on sale to the public and represents the number of raffle tickets sold, which graph best represents the scenario?
Answer:
The top graph.
Step by step:
Before the tickets go on sale, 120 tickets were already sold.
After that, the tickets sell at a constant rate for a total of 8 hours.
At the end of this time, all the tickets were sold (we have 0 tickets left)
If x (horizontal axis) represents the hours since tickets go on sale, and y (vertical axis) represents the number of raffle tickets sold.
Then, at x = 0, we should already see y = 120
Because we start with 120 tickets sold.
Then, as x increases, the number of tickets sold also should increase, until we get x = 8 hours, where y stops increasing because all tickets are already sold.
Then we should have an increasing line that stops increasing at x = 8 hours.
Then the correct option is the above graph, where we have:
An increasing line.
y = 120 in the vertical axis (y = 120 when x = 0)
find the area of the following figure
Answer:
54
Step-by-step explanation:
(24^2)+(30^2)
Answer:
54yd^2
Step-by-step explanation:
you need to break up the figure into 2 different boxes. One 3 x 10 and one 6 x 4 which adds up to 30 + 24 = 54.
What is the greatest common factor of
12x3 + 6xy + 18x?
Answer:
6x
Step-by-step explanation:
12x^3, 6xy, and 18x can all be evenly divided by 6x
Romberg integration for approximating L',f(x) dx gives R21 = 6 and R22 = 6.28 then R11 5.16 4.53 2.15 0.35
The Romberg integration method is used to approximate definite integrals. Given the values R21 = 6 and R22 = 6.28, we can determine the value of R11.
To find R11, we can use the formula:
R11 = (4^1 * R21 - R22) / (4^1 - 1)
Substituting the given values, we have:
R11 = (4 * 6 - 6.28) / (4 - 1)
= (24 - 6.28) / 3
= 17.72 / 3
≈ 5.9067
Therefore, the approximate value of R11 is approximately 5.9067.
Romberg integration is an extrapolation technique that refines the accuracy of numerical integration by successively increasing the order of the underlying Newton-Cotes method. The notation Rnm represents the Romberg approximation with m intervals and n steps. The general formula for calculating Rnm is:
Rnm = (4^n * Rn-1,m-1 - Rn-1,m) / (4^n - 1)
In this case, R21 represents the Romberg approximation with 2 intervals and 1 step, while R22 represents the approximation with 2 intervals and 2 steps. By substituting these values into the formula, we can calculate R11. The numerator is obtained by multiplying R21 by 4 and subtracting R22. The denominator is calculated by subtracting 1 from 4^n. Evaluating this expression yields the approximate value of R11 as 5.9067.
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Solve the following system of equations 7x - 3y = 11
Answer:
x= 11/7 + 3y/7
Step-by-step explanation:
Answer:
y=11 -7/3x
Step-by-step explanation:
subtract the 7
bring the seven to the other side
then divide by 3
Let a, b ∈ C and let Cr be the circle of radius R centered at the origin, traversed once in the positive orientation. If |al < R< b), show that:
∫ 1/ (z-a)(z-b) dz= 2pii/a-b
The integral ∫ 1/ (z-a)(z-b) dz over the circle Cr, where a and b are complex numbers and |a| < R < |b|, evaluates to 2πi/(a-b).
To show this, we can use the Residue theorem. Since the function 1/(z-a)(z-b) has two simple poles at z=a and z=b within the region enclosed by the circle Cr, we can evaluate the integral by summing the residues at these poles.
The residue at z=a is given by Res(a) = 1/(b-a), and the residue at z=b is given by Res(b) = -1/(b-a). By the Residue theorem, the integral is equal to 2πi times the sum of the residues.
Therefore, ∫ 1/ (z-a)(z-b) dz = 2πi * (1/(b-a) - 1/(b-a)) = 2πi/(a-b).
This result shows that the integral over the circle Cr simplifies to a complex constant determined by the difference between a and b.
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what is 22/25 as a equivalent fraction out of 100
Answer:
hope this helps :)
Step-by-step explanation:
Solve the given initial-value problem for yo > 0. dy = Vy, y(x) = Yo dx y(x) = (1 xo 2. х 2 + Yo ) Find the largest interval I on which the solution is defined.
The given differential equation is given by `dy/dx = V*y` and the initial condition is `y(x) = Yo`.
The solution of the differential equation is given by `y(x) = Yo*e^(V*x)`.
Using this formula and the initial condition `y(x) = Yo`,
we get `Yo = Yo*e^(V*x)`.
This implies that `e^(V*x) = 1` or `V*x = 0`.
Thus `x = 0` is the only value of x on which `y(x) = Yo` for any value of `V`.
Now, we are given `y(x) = (1 + x^2)/(x^2 + Yo)` which is valid only if `Yo > 0` (as given). We need to find the largest interval on which the solution is defined. This means that we need to find the largest interval of x-values for which the given expression for `y(x)` makes sense. Since the denominator of the expression `y(x) = (1 + x^2)/(x^2 + Yo)` is `x^2 + Yo`, the expression is defined only if `x^2 + Yo > 0`. As `Yo > 0`, this inequality holds for all values of `x`. Thus, the solution is defined for all `x` in the real line. Therefore, the largest interval on which the solution is defined is `(-∞, ∞)`.
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Let L be the linear operator in R2 defined by
L(x)=(3x1-2x2,9x1-6x2)T
Find bases of the kernel and image of L .
Kernel: ___________
Image:____________
Let L be the linear operator in R2 defined by L(x) = (3x1 - 2x2, 9x1 - 6x2)T. The bases of the kernel and image of L are to be determined. To find the bases of the kernel and image of L, we first recall the definitions of kernel and image of a linear operator. Definition of Kernel: Let T be a linear operator on a vector space V. Then the kernel of T, denoted as ke T, is the subspace of V that consists of all vectors that are mapped to the zero vector of the range of T. Definition of Image: Let T be a linear operator on a vector space V. Then the image of T, denoted as im T, is the subspace of the range of T consisting of all vectors that are mapped by T to some vectors in the range of T. The kernel and image of L are given as follows. Kernel of L: For L(x) = (3x1 - 2x2, 9x1 - 6x2)T to be zero vector, we must have 3x1 - 2x2 = 0 and 9x1 - 6x2 = 0, which implies that x1 = (2/3)x2.
Therefore, a typical element of the kernel of L can be expressed as (x1, x2)T = (2/3)x2(1, 3)T, where x2 is a scalar. Hence, a basis for the kernel of L is {(1, 3)T}. Image of L: The image of L is the subspace of R2 consisting of all vectors that can be expressed in the form L(x) = (3x1 - 2x2, 9x1 - 6x2)T, where x is any vector in R2. It follows that any vector in the image of L is of the form (3x1 - 2x2, 9x1 - 6x2)T = x1(3, 9)T + x2(-2, -6)T. Therefore, a basis for the image of L is {(3, 9)T, (-2, -6)T}.Hence, the bases of the kernel and image of L are as follows. Kernel: {(1, 3)T}Image: {(3, 9)T, (-2, -6)T}.
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Find the minimum or maximum value of the function. What is the H? (Desmos)
Answer:
Minimum: (2,4)
Step-by-step explanation:
h(x)=3([tex]x^{2}[/tex]-4x)+16
=3([tex]x^{2}[/tex]-4x+4-4)+16 (- For the balance of equation, and attention 1)
=3[tex](x-2)^{2}[/tex]-3*4+16
=3[tex](x-2)^{2}[/tex]+4
Attention:1. [tex](a-b)^{2}=a^{2} -2ab+b^{2}[/tex]
2. The formula for the vertex form is y = [tex]a(x-h)^{2}+k[/tex], the vertex is (h,k)
Sketch the graph for each function. Choose either A, B, C, or D.
A researcher is interested in the effect of vaccination (vaccinated vs not vaccinated) and health status (healthy vs with pre-existing condition) on rates of flu. She samples 20 healthy people and 20 people with pre-existing conditions. 10 of the healthy people and 10 of the people with pre-existing conditions are given a flu shot. The other 10 healthy people and people with pre-existing conditions are not given flu shots. All of the subjects are monitored for a year to see if they contract the flu. How many total subjects (N) are there in the study? O 10 20 30 40
In this study, there are a total of 40 subjects. The researcher samples 20 healthy people and 20 people with pre-existing conditions. Out of these, 10 healthy people and 10 people with pre-existing conditions are given a flu shot, while the other 10 from each group are not given flu shots.
To calculate the total number of subjects (N), we add the number of healthy people to the number of people with pre-existing conditions:
N = Number of healthy people + Number of people with pre-existing conditions
N = 20 + 20
N = 40
Therefore, the total number of subjects in the study is 40.
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Travis has $1,500 in a savings account. He deposits $75. How much interest will he earn after 2 years at a simple annual interest rate of 1.3%?
(The links don’t work so please just give the answer)
Answer:
40.95
Step-by-step explanation:
P = 1500 + 75 = 1575
I = Prt
I = 1575(1.3%)(2)
I = 40.95
Grayson can read 18 pages of a book in 30 minutes. At that rate, how long would it take Grayson to read 150 pages? Express your answer in hours and minutes.
Answer:
4 hours and 10 min
Step-by-step explanation:
For this equation we will do ratios:
[tex]\frac{18}{30} =\frac{150}{x} \\\\18x=4500\\x=250[/tex]
250 min =
4 hours and 10 min
4(60) = 240
240 + 10 = 250 minutes
to find the solution to a system of linear equations, verdita begins by creating equations for the two sets of data points below.data set aa 2-column table with 4 rows. column 1 is labeled x with entries negative 1, 1, 5, 7. column 2 is labeled y with entries negative 6, 2, 18, 26.data set ba 2-column table with 4 rows. column 1 is labeled x with entries negative 5, negative 2, 0, 6. column 2 is labeled y with entries negative 1, 2, 4, 10.which equations could verdita use to represent the data sets?
The equations Verdita could use to represent the data sets include the following:
A. Data Set A: y = 4x-2
Data Set B: y = x +4
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.First of all, we would determine the slope of data set A;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (2 + 6)/(1 + 1)
Slope (m) = 8/2
Slope (m) = 4
At data point (1, 2) and a slope of 4, a linear equation for data set A can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 2 = 4(x - 1)
y = 4x - 2
At data point (0, 4) and a slope of 1, a linear equation for data set B can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 4 = 1(x - 0)
y = x + 4
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Cereal box Design Project Connexus
30 points
The most cost-efficient container is the Rectangular Prism.
1. Rectangular Prism:
Volume: V = lwh = 10 x 5 x 15 = 750 cubic units
Cost: C = $0.01 x 750 = $7.50
Cost per unit volume: C/V = $7.50 / 750 = $0.01 per cubic unit
2. Rectangular Pyramid:
Volume: V = (1/3) x lwh = (1/3) x 10 x 5 x 15 = 250 cubic units
Cost: C = $0.02 x 250 = $5.00
Cost per unit volume: C/V = $5.00 / 250 = $0.02 per cubic unit
3. Cylinder:
Volume: V = πr²h = π x 5² x 15 ≈ 1178.1 cubic units
Cost: C = $0.015 x 1178.1 = $17.67
Cost per unit volume: C/V = $17.67 / 1178.1 ≈ $0.015 per cubic unit
Now, comparing the cost per unit volume for each container:
a. Rectangular Prism: $0.01 per cubic unit
b. Rectangular Pyramid: $0.02 per cubic unit
c. Cylinder: $0.015 per cubic unit
The container with the lowest cost per unit volume is the Rectangular Prism, with a cost of $0.01 per cubic unit.
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help please i have 0 clue on what to do
Answer:
Step-by-step explanation:
[tex]9x6x12[/tex]= 648 the length(12m), width(6m), and height(9m) that all i can give you for now because this got me losing brain sells
Answer:
for the first question the answer is 3
for the second question the answer is 9
Step-by-step explanation:
12/4=3, 6/2=3, 9/3=3
8+8+12+12+6+6 = 52 & 108 + 108 + 72 + 72 + 54 + 54= 468
468 / 52 = 9
A cup of milk has 10 grams of protein. How much protein is in 2.5 cups of milk?
Answer:
25 grams of protein
Step-by-step explanation:
10 grams of protein is in 1 cup of milk.
To understand how many grams of protein are in 0.5 cups of milk, I would need to divide 10 by 2, to get 5.
There are 5 grams of protein in 0.5 cups of milk.
Now if I want to see how many grams of protein are in 2 cups of milk, I would multiply 10 by 2, to get 20.
There are 20 grams of protein in 2 cups of milk.
But, the question is asking for how much protein is in 2.5 cups of milk.
Since we know how much is in 2 cups, and 0.5, we can just add them together, because 2+0.5 is 2.5.
20+5 is 25 grams.
There are 25 grams of protein in 2.5 cups of milk.
Madeline is saving up to buy a new jacket. She already has $40 and can save an
additional $8 per week using money from her after school job. How much total
money would Madeline have after 10 weeks of saving? Also, write an expression that
represents the amount of money Madeline would have saved in w weeks.
Answer:
120
equation: 40+8(10)=120
Step-by-step explanation:
The math for this is $40 initial plus $8x the 10 weeks which equals 80 so
40+80=120
A gym is open for children to play from eleven o clock to three o clock how many hours is the gym open for children to play
Answer:
5 o clock
Step-by-step explanation:
Someone plsss helppp
Answer:
wtfrick- that's so confusing
Step-by-step explanation:
sorry I don't have an answer wish this was a comment