The following sample of n = 4 scores was obtained from a population with unknown parameters. Scores: 2, 2, 6, 2 a. Compute the sample mean and standard deviation. (Note that these are descriptive values that summarize the sample data.) b. Compute the estimated standard error for M. (Note that this is an inferential value that describes how accurately the sample mean represents the unknown population mean.)

Answer:

0

Step-by-step explanation:

Answer:

20 boxes

Step-by-step explanation:

Each box ca hold 12 eggs

There are 230 eggs

So you will need 230/12 = 19 1/6 boxes =  19.167 boxes

Since you cannot get less than 1 box, round up to 20 boxes. There will be some empty spaces in one of the boxes

Answer:

x = -5

Step-by-step explanation:

-34 - 5x = 3x + 6

x = -5

Answer:

x=-5

Step-by-step explanation:

divide each side by a factor thay dont contain  variable

Answer:

answer is 26.6%

Step-by-step explanation:

i first converted the fraction "40/150" to a decimal by dividing 40 by 150

40 divided by 150 is .26 (rounded)

and then i did .26 times 100

which gave me 26.6

:P hope this helped even doe im kinda late-

Answer:

Part 1: [ -4 = -8 ]

Part 2: Inconsistent

Step-by-step explanation:

Part 1

1. Move all terms that don't contain x to the right side:

3x - 6y+6y = -12+6y

= 3x = -12 + 6y

2. Isolate x:

\(\frac{3x}{3} = \frac{-12+6y}{3}\)

x = -4 + 2y

3. Substitute the new expression into the original:

-4 + 2y - 2y = -8

4. Simplify:

-4 + 0 = -8

[ -4 = -8 ]

Part 2

The two solutions are not equal in value, so, we can conclude that the system of equations has no solution, or is inconsistent.

hope this helps!

The solution to the given system of equations is:

x = 4, y = -3, z = 4.

To solve the given system of equations:

5x - 3y - 4z = 13

2y - 4z = -22

-2z = -8

We can start by solving equation (3) for z:

-2z = -8

Dividing both sides by -2:

z = (-8) / (-2)

z = 4

Now, substitute z = 4 into equations (2) and (1) to solve for y and x, respectively:

2y - 4z = -22

2y - 4(4) = -22

2y - 16 = -22

2y = -22 + 16

2y = -6

Dividing both sides by 2:

y = -6 / 2

y = -3

5x - 3y - 4z = 13

5x - 3(-3) - 4(4) = 13

5x + 9 - 16 = 13

5x - 7 = 13

5x = 13 + 7

5x = 20

Dividing both sides by 5:

x = 20 / 5

x = 4

Therefore, the solution to the given system of equations is:

x = 4, y = -3, z = 4.

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Answer:

No solution

Step-by-step explanation:

Basically the simplified equation is 17 = 0, which is wrong so there is no solution.

Weighing the available information and assigning a probability.

A sort of probability called subjective probability is one that is based on a person's subjective assessment or personal knowledge of the likelihood of a particular result. It solely represents the subject's thoughts and prior experience and does not include any formal computations. A "gut instinct" used when making a deal is an illustration of subjective probability.

So, as per the definition of subjective probability

Dividing the number of favourable events by the number of possible events and Studying the fraction of times in the past a particular event has happened, both can be determined through calculations mathematically accurate but for Weighing the available information and assigning a probability we might use a "gut instinct". Thus

Weighing the available information and assigning a probability.

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The distribution of the sample proportion who voted for Obama approximately normal with a mean of 0.547 and a standard deviation of 0.0095

We are provided with the following;

Proportion of voters who voted for Obama, p=0.547 or 54.7%

Total number of voters, n=2752

Mean=official number of votes Obama got=54.7%=0.547

Let us calculate the standard deviation, s:

\(s=\sqrt\frac{p(1-p)}{n}\)

\(s=\sqrt\frac{0.547(1-0.547)}{2752}\)

s=0.009488

Hence, the sample proportion is approximately normal with a mean of 0.547 and a standard deviation of 0.0095

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The domain and range of F is F={(x, y) Ix+y=10] is: 3. Domain: All Real Numbers Range: All Real Numbers

The given set F={(x, y) | x+y=10} represents a linear equation where the sum of x and y is always equal to 10.

To determine the domain and range of F, we need to consider the

possible values of x and y that satisfy the equation.

Domain: The domain represents the set of all possible values for the independent variable, which in this case is x. Since there are no restrictions on the value of x, the domain is All Real Numbers.

Range: The range represents the set of all possible values for the dependent variable, which in this case is y. By rearranging the equation x+y=10, we can solve for y to get y=10-x. Since x can take any real value, y can also take any real value. Therefore, the range is also All Real Numbers.

The correct answer is: 3. Domain: All Real Numbers Range: All Real Numbers

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A line in slope-intercept form is represented by the following equation:

Parallel lines have the same slope, then if the line is parallel to the line y=-2x+5, the slope of the parallel line would be -2 too.

Now, by the given point (2,1) and knowing the slope of the line, we can use the slope-point form of the line equation to get the slope-intercept form:

Substituting:

Notice that the parallel line would be the same original line, y=-2x+5.

Answer:

it is option no d at least

cuz it is what it is

Answer:

389 feets apart

Step-by-step explanation:

Given that:

Building A

Height = 400feets

Angle of elevation = 70°

Building B:

Height = 300 feets

Angle of elevation = 52°

Distance from the foot of building A to where Jonny is standing = x (see attached picture)

Using trigonometry :

Tanθ = opposite / Adjacent

Tan 70 = 400/ x

2.7474774x = 400

x = 145.58809 feets

Distance from the foot of building B to where Jonny is standing = y (see attached picture)

Using trigonometry :

Tanθ = opposite / Adjacent

Tan 52 = 300/ y

1.2799416y = 300

y = 145.59

y = 234.38568 feets

x + y = distance between the two buildings

(145.58809 + 234.38568) feets

= 379.97377

= 380 feets apart

Answer:

Giraffe = 1,000 kg

Whale = 2,000,000 kg

Step-by-step explanation:

Whale has 2,000 times the mass.

Can I please get Branliest and rate, like Thank you!

Answer:

x>5

Step-by-step explanation:

> defines the dotted line while x determines where it is plotted and the side that is shaded

Your average waiting time will be approximately 1 minute.

As the first passenger, you will not have to wait for any other passengers to get in the taxi. However, the taxi will wait for 2 passengers to arrive or 3 minutes to pass since your boarding.

Since passengers arrive according to a Poisson process with an average of 60 passengers per hour, the arrival rate lambda can be calculated as:

lambda = average number of passengers per time unit = 60/60 = 1 passenger per minute

The time between two consecutive passenger arrivals follows an exponential distribution with parameter lambda. Thus, the probability of waiting less than t minutes for the second passenger to arrive can be calculated as:

P(wait < t) = 1 - e^(-lambda*t)

We need to find the average waiting time until the second passenger arrives. This can be calculated as the area under the probability distribution curve divided by the arrival rate lambda:

average waiting time = integral from 0 to infinity of t*(1 - e^(-lambda*t)) dt / lambda

Using integration by parts, we can solve this integral to get:

average waiting time = 1/lambda + (1 - e^(-lambda*t))/(lambda^2)

Plugging in the values, we get:

average waiting time = 1/1 + (1 - e^(-1*3))/(1^2) = 1 + (1 - 0.0498) = 1.9502 minutes

Therefore, as the first passenger, your average waiting time until the second passenger arrives is 1.9502 minutes.

To answer your question, let's consider the two possible scenarios:

1. Two passengers are collected: In this case, the first passenger (you) waits for the second passenger to arrive. Since the arrival rate is 60 passengers per hour, the average time between arrivals is 1 minute (60 minutes / 60 passengers).

2. Three minutes have expired: In this case, the taxi departs after 3 minutes even if only one passenger (you) is in the taxi.

On average, the waiting time for the first passenger (you) will be the minimum of these two scenarios. Thus, your average waiting time will be approximately 1 minute.

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Tanya's car will go 10 2/5 miles on 1 gallon of gas.

What is expression?

An expression consists of one or more numbers or variables along with one more operation.

We can start by finding out how many quarters of gas are in a gallon. Since there are 4 quarters in a whole, there are 4 quarters in one gallon of gas. Therefore, we can find how many miles Tanya's car will go on 1 gallon of gas by multiplying the number of miles it goes on 1/4 of gas by 4:

2 3/5 miles ÷ (1/4) = 2 3/5 miles × 4 = 10 2/5 miles

So, Tanya's car will go 10 2/5 miles on 1 gallon of gas.

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Answer:

7.9

Step-by-step explanation:

When a number (or multiple numbers) is placed between two lines like this | |, that is the absolute value grouping symbol. Absolute value is the distance between the grouped number(s) and another defined number. In this case there are no other given numbers so 0 is assumed.

Now, say a friend is driving to your house and you call them to ask how far away they are from arriving (in distance), and they say "Around negative 5 miles away." That doesn't make sense! Distance can never be negative, and because absolute value is the distance between a number and another, a number within that grouping symbol can never be negative if there is a solution. Therefore, |-7.9| would be 7.9, because -7.9 is that exact amount away from 0.

Explanation:

The graph is not symmetric about the y axis, which tells us that the function is not even.

All odd functions pass through the origin, so this function is not odd either.

Answer:

R.I.P

Step-by-step explanation:

goodluck doing that

Answer:

C = 7.72 ~ 7.7

Step-by-step explanation:

So when you solve this equetion you must 1st find x then c

we can find x by using cos(60)

cos(60) = x/14

x = cos(60) × 14

x = 1/2 ×14

x = 7

so after we find x we are going to solve c by using cos (25)

cos (25) = X/C = 7/c

cos(25) × C = 7

C = 7/cos (25)

C = 7.72 ~ 7.7

so the solution is 7.7

Answer:

51%

Step-by-step explanation:

51 of the 100 cubes are green so 51/100 is equal to 51%

Answer:

5.20

Step-by-step explanation:

48 / 9.23 = 5.20043336945

rounded to tenth is 5.20

Hope This Helped

Answer:5.20

Step-by-step explanation:

48 / 9.23 = 5.20

Answer: h= 9.74 feet

Step-by-step explanation:

To find the height of the top of the ladder from the ground, we can use the Pythagorean theorem. Let's call the height of the top of the ladder "h".h^2 = 12^2 - 7^2h^2 = 144 - 49h^2 = 95h = sqrt(95)h ≈ 9.74 ftRounding to the nearest tenth, the height of the top of the ladder from the ground is 9.7 ft.

Answer:

Step-by-step explanation:

Use Pythagorean Theorem

a²  +   b²     =   c²

7²   +  b²     = 12²

49 +  b²      =144

49 - 49 + b²  = 144 -49

b²   =  95

√b²  = √95

b  =   9.74

round to 9.7

Joan went to the store and bought A watermelon for $3 some grapes. Grapes coughed $5.25 per pound if jamba X pounds for grapes which equation best represents y the total Amount joan has to pay before text

The true speed of the object is 58.524.

The direction of the object is 163°.

Given that,

An object experiences two velocity vectors in its environment.

v1 = −60i + 3j

v2 = 4i + 14j

Resultant vector is,

V = v1 + v2

   = -56i + 17j

Now the true speed is,

True speed = √(=[(-56)² + (17)²] = 58.524

Direction of the object is,

Direction = tan⁻¹ (17 / -56)

               = - tan⁻¹ (17/56)

               = -16.887° ≈ -17°

                                = 180° - 17 = 163°

Hence the correct option is A.

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To estimate the rate of tumorigenesis in strains A and B, we can use Bayesian inference. We'll assume that the tumor counts in both strains follow a Poisson distribution. The goal is to find the posterior distributions, means, and variances for the rates in each strain.

Let's denote the rate of tumorigenesis in strain A as λA and in strain B as λB. We'll assign prior distributions to these rates, and then update them based on the observed tumor counts.

Given that type A mice have tumor counts approximately Poisson-distributed with a mean of 12, we can choose a Gamma prior for λA, which is the conjugate prior for the Poisson distribution. We'll use a Gamma(αA, βA) distribution as the prior for λA.

Similarly, since the tumor count rates for type B mice are unknown but related to type A mice, we can also use a Gamma prior for λB. Let's choose a Gamma(αB, βB) distribution as the prior for λB.

Now, let's calculate the posterior distributions, means, and variances for λA and λB based on the observed tumor counts.

For strain A, the observed tumor counts are:

YA = (12, 9, 12, 14, 13, 13, 15, 8, 15, 6)

The likelihood of observing these tumor counts given λA is given by the product of the Poisson probabilities:

L(λA|YA) = Poisson(12; λA) * Poisson(9; λA) * Poisson(12; λA) * ... * Poisson(6; λA)

Using Bayes' theorem, the posterior distribution for λA is proportional to the product of the likelihood and the prior distribution:

Posterior(λA|YA) ∝ L(λA|YA) * Prior(λA)

To find the exact posterior distribution, we need to normalize the posterior by integrating over all possible values of λA.

Similarly, for strain B, the observed tumor counts are:

YB = (11, 11, 10, 9, 9, 8, 7, 10, 6, 8, 8, 9, 7)

The likelihood of observing these tumor counts given λB is:

L(λB|YB) = Poisson(11; λB) * Poisson(11; λB) * Poisson(10; λB) * ... * Poisson(7; λB)

The posterior distribution for λB is given by:

Posterior(λB|YB) ∝ L(λB|YB) * Prior(λB)

Again, we need to normalize the posterior distribution to obtain the exact values.

The means and variances of the posterior distributions can be obtained analytically by using the properties of the Gamma distribution.

Note: To find precise numerical values and distributions for the posterior distributions, we need to specify the parameters (αA, βA, αB, βB) for the Gamma prior distributions. Please provide the values for these parameters, and I can help you calculate the posterior distributions, means, and variances for strains A and B.

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Answer:

7474747448548

Step-by-step explanation:

I hope this helps