what is meant by saying that a variable has a chi-square distribution?

Part A: The theoretical probability of drawing a red card is 0.32 or 32%.

Part B: The experimental probability of drawing a red card is 0.38 or 38%, and it is 6% greater than the theoretical probability.

Part A: The theoretical probability of drawing a red card from the hat is the number of red cards divided by the total number of cards in the hat:

\(P_{red}\) = 8 ÷ (8 + 6 + 7 + 4)

= 8 ÷ 25

= 0.32 or 32%.

Part B: The experimental probability of drawing a red card can be calculated by dividing the number of times a red card was drawn by the total number of trials:

\(P_{red}\) = 437 ÷ 1150

= 0.38 or 38%.

The difference between the experimental probability and the theoretical probability can be calculated as follows:

0.38 - 0.32

= 0.06 or 6%

To learn more about probability follow the link:

https://brainly.com/question/30231190

#SPJ1

The main function of the female reproductive system is to allowing a person to have sexual intercourse, it also helps a person reproduce.

Both internal and exterior organs make up the female reproductive system. It is in charge of hormone production, menstruation, and sexual activity.

The physical parts that assist women or those who were assigned female at birth (AFAB) are the female reproductive system:

Have a sexual encounter.

Reproduce.

Menstruate.

The female reproductive system serves a number of purposes. It aids in sexual reproduction in addition to enabling sexual activity.

You make eggs using your ovaries. During ovulation, these eggs are subsequently moved to your fallopian tube where sperm fertilisation may take place. The fertilised egg is then transferred to your uterus, where the lining has expanded due to the regular hormones produced during your menstrual cycle (also called your reproductive cycle).

To learn more about female reproductive system visit:

brainly.com/question/1021794

#SPJ4

The reproductive system of a woman performs three primary tasks: releasing eggs that may be fertilized by sperm; (ii) producing female sex hormones including progesterone and oestrogen; and (iii) creating a favorable environment for the development of a fertilized egg during pregnancy.

The female reproductive system is made up of both internal and external organs. Menstruation, sexual activity, and hormone production are all under its control.

The female reproductive system is one of the physical components that helps women or people who were given that gender at birth (AFAB):

Engage in sexual activity.

Reproduce.

Menstruate.

There are many uses for the female reproductive system. Along with permitting sexual activity, it also promotes sexual reproduction.

A woman's reproductive system primarily serves to: I release eggs that may be fertilized by sperm; (ii) produce female sex hormones like progesterone and oestrogen; (iii) create an environment for a fertilized egg to develop throughout pregnancy; and (iv) facilitate labor and childbirth.

To learn more about woman's reproductive system visit the link:

http://brainly.com/question/10234107

#SPJ4

Ex

Answer:

Step-by-step explanation:

1unit is equal to. .?

Net rendering is a method of rendering a computer-generated animation or image on multiple computers over a network.

Net rendering is a method of rendering a computer-generated animation or image on multiple computers over a network. This technique allows a user to take advantage of the computing power of multiple computers to render a scene. To do this, the user would divide the scene into several parts, assigning each part to a different computer. The computers would then render each part of the scene independently, and then the results are combined into a single image. This process can significantly reduce the time required to render a scene, as the workload is distributed over multiple computers. For example, if it would normally take a single computer 10 minutes to render a scene, net rendering could reduce that time to 2 minutes.

Learn more about significantly here:

https://brainly.com/question/14789537

#SPJ1

We have the expression:

We have to evaluate it for m = 3 and n = -5.

To do that we replace the variables with its values and calculate:

Answer: the value of the expression is -78.

Answer:

3/6 or 1/2.........................

Answer:

The probability is

5

6

.

Explanation:

Probability is

d

e

s

i

r

e

d

a

l

l

Let's find the possible outcomes of rolling odd.

1,3,5 are all odd. We have 3 outcomes.

Now find the possible outcome of a power of 2.

2 is

2

1

, 4 is

2

2

. We have 2 DIFFERENT outcomes.

(If these outcomes overlapped, we would have to subtract to get unique outcomes. In this case, these outcomes are different)

Now, we find the total number of possible outcomes.

A dice has 6 different outcomes.

Now add up the desired outcomes,

3

+

2

=

5

and so the probability is

5

6

Answer: 21 1/8 kilogram

Step-by-step explanation:

From the question, we are informed that Chef bought 3 3/4 kilograms of apples 7 1/4 kilograms of pears and 10 1/8 kilograms of oranges. The total kilogram of fruits bought would be:

= 3 3/4 + 7 1/4 + 10 1/8

Note that the Lowest Common Multiple is 8.

= 3 6/8 + 7 2/8 + 10 1/8

= 20 9/8

= 21 1/8 kilogram

Explanation:

The starting term is a = 10.

The common ratio r is found by dividing each term by its previous term.

The nth term is therefore \(a_n = a(r)^{n-1} = 10(-5)^{n-1}\)

Plug in n = 12 to get the 12th term:

\(a_n = 10(-5)^{n-1}\\\\a_{12} = 10(-5)^{12-1}\\\\a_{12} = 10(-5)^{11}\\\\a_{12} = 10(-48,828,125)\\\\a_{12} = -488,281,250\\\\\)

Delete the commas if your teacher requires it.

Answer:

THE CONSTANT OF VARIATION IS 1/2 or 0.5

Step-by-step explanation:

Here, we want to calculate the variation constant.

From the question, we are told that number of days varies directly as the number of chores

Mathematically, that would be;

y = kx

where k is the constant of proportionality

To get the value of k, we simply divide the value of y at a point by the value of x at that point

Mathematically;

1 = 2k

which is same as

5 = 10k

Thus, the value of k would be 5/10 = 1/2 or 0.5

Answer:

The answer is 1/2 so C

Step-by-step explanation:

The probability of drawing this card will be 0.25.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1. In this case, 0 denotes the impossibility of the event and 1 represents certainty.

It should be noted that in a pack of card, the number of diamond faced card is 13. Therefore, the probability will be:

Number of diamonds / Total cards

= 13 / 52

= 0.25

The probability is 0.25.

Learn more about probability on:

brainly.com/question/24756209

#SPJ1

Music us enjoy to --- and said aaaa

Answer:

right 3 up 4

Step-by-step explanation:

Answer:

x+3, y+4

Step-by-step explanation:

Answer:

3/20 of more meat is used for a quarter pounder

Answer:

Step-by-step explanation:

a) 100cm 1m so, 320/100=3.2m, 1200/100=12m

b) 3.2+3.2+12+12= 6.4+24=30.4

c) 3*12=36m squared

d) 3.2*12= 3*12+0.2*12=36+2.4=38.4m squared

e) My estimate in d) was reasonable

f) This is because 36 and 38.4 are really close to each other they only have a difference of 2.4 and that is because instead of multiplying the estimate with 3 and a 0.2 I just multiplied it with a 3. 0.2*12=2.4 so the difference is reasonable.

Answer:

el origen  espero wue ayuda

Step-by-step explanation:

The volume of the solid bounded by the surface z = 1 - x² - y² and the xy-plane is found by integrating the area of each cross-section perpendicular to the xy-plane. The volume is π/2 cubic units.

To find the volume of the solid bounded by the surface z = 1 - x² - y² and the xy-plane, we need to integrate the area of each cross-section perpendicular to the xy-plane.

Each cross-section is a circle with radius r = √(1 - z), centered at the origin. The area of a circle with radius r is A = πr². Therefore, the area of each cross-section is:

A(z) = π(1 - z)

Integrating this area with respect to z from 0 to 1 (since the surface z = 1 - x² - y² is bounded between 0 and 1), we get:

V = ∫₀¹ A(z) dz

 = ∫₀¹ π(1 - z) dz

 = π[z - (z²/2)] from 0 to 1

 = π/2

Therefore, the volume of the solid bounded by the surface z = 1 - x² - y² and the xy-plane is π/2 cubic units.

To know more about volume of the solid, visit:
brainly.com/question/23705404
#SPJ11

Answer:

option A

Step-by-step explanation:

the together form a complementary angles.

hope this helps you.

✌️✌️✌️

The sum of the measure of angle ∠AXY and angle ∠YXB is the measure of ∠AXB.

The relationship between ∠AXY and ∠YXB is that they are;

Reasons:

From the diagram in the question, we have;

∠BXC = 90° Given

∠BXC and ∠BXA are linear pair angles

Therefore;

∠BXC and ∠BXA are supplementary angles, which gives;

∠BXC + ∠BXA = 180° definition of supplementary angles

Therefore;

∠BXA = 180° - ∠BXC

∠BXA = 180° - 90° = 90°

∠BXA = 90°

∠AXY + ∠YXB = ∠BXA by angle addition property

Which gives;

Therefore ∠AXY and ∠YXB are;

Learn more about complementary angles here:

https://brainly.com/question/3070324

Answer:$17.50 remaining

Step-by-step explanation: 0.25 x 30 = 7.50

7.50 - 25.00 = $17.50 remaining

Answer:

$17.5

Step-by-step explanation:

B = 25 -0.25(30)

B = 25 - 7.5

B = 25.0 - 7.5

B = $17.5

The Systems Development Life Cycle (SDLC) is a process used in the development of software and information systems. It provides a framework for managing the entire software development process, from initial planning and requirements gathering through to implementation, testing, and maintenance. There are typically several phases involved in the SDLC, each with its own unique set of activities. The correct statement is "No phase can occur until the previous phase is completed."

Of the statements provided, the true statement concerning the systems development life cycle is that "No phase can occur until the previous phase is completed." This is because each phase of the SDLC builds on the previous phase, and it is necessary to complete each phase before moving on to the next one.

For example, in the first phase of the SDLC, requirements gathering and analysis, the project team works with stakeholders to identify the project scope, goals, and objectives. Once this phase is completed, the project team can move on to the next phase of the SDLC, which is typically design. In the design phase, the team uses the requirements identified in the previous phase to create a detailed design for the system. Once the design phase is complete, the team can move on to the next phase, which is typically development.

It is important to note that although each phase of the SDLC is presented discretely, they are never accomplished as separate steps. Rather, each phase is a part of a continuous process that is revisited and refined as necessary throughout the development cycle. Furthermore, while there is no consensus on the exact number of phases in the SDLC, there is widespread agreement that the process consists of several distinct phases, each with its own set of activities and deliverables.

For more such questions on Systems Development Life Cycle (SDLC).

https://brainly.com/question/28192391#

#SPJ11

The rate of change of the side of the square is 1.5 centimeters per second when the area is 3 square centimeters.

Let's denote the side length of the square as s, and the area of the square as A. Then we know that \(A = s^2\). We are given that \(dA/dt = 30 cm^2/s\), which means that the area of the square is increasing at a rate of \(30 cm^2/s\). We want to find ds/dt, the rate of change of the side of the square.

Using the chain rule, we have:

\(dA/dt = d/dt (s^2) = 2s ds/dt\)

Solving for ds/dt, we get:

\(ds/dt = (1/2s) dA/dt\)

When the area is \(3 cm^2\), the side length is \(s = \sqrt{3} cm\). Plugging in dA/dt = 30 cm^2/s and s = sqrt(3) cm, we get:

\(ds/dt = (1/2(\sqrt{3})) (30) = 1.5 cm/s\)

Therefore, the rate of change of the side of the square is 1.5 cm/s when the area is 3 cm^2.

For more questions like Area visit the link below:

https://brainly.com/question/24159256

#SPJ11

Answer:

y = (1/8)x

Step-by-step explanation:

The relevant basic formula is y = kx, where k is the constant of proportionality.

We must find k.  To do this, let y = 15/6 and x = 20 in the above formula:

15/6 = k(20)

We solve for k by dividing both sides by 20:  15/(6*20) = k = 1/8

Then the specific formula for this situation is y = (1/8)x

The factored form of the expression 144abc - 108ab is 36ab(4c - 3).

To factor the expression 144abc - 108ab, we can first identify the common factors of the terms.

In this case, we can see that both terms have a common factor of 36ab:

144abc - 108ab = 36ab(4c - 3)

So, the expression can be factored as 36ab(4c - 3).

This means that the expression is not prime and can be simplified further by factoring out the common factor.

By factoring out the common factor of 36ab, we obtain the simplified form of the expression as 36ab times the binomial (4c - 3).

To know more about factored form refer here:

https://brainly.com/question/43919#

#SPJ11

Answer:

Step-by-step explanation:

The weight of the suitcase is the difference of the two measures:

Since its less than 50 pounds no extra fees will be charges.

Weight of suitcase

No extra charge

Answer:

150 degrees

Step-by-step explanation:

You can figure this out by looking at the degrees below d, and you see it is thirty, and that it is equal to the degree above the x, so then you subtract 30 from 180 to get 150. Hopefully that makes sence, I forgot what some of the terms are called.

Answer:

Which quadratic equation models the main cable of the bridge correctly?

y = 0.048x2 – 2494

y = 0.048x2 – 6

y = 0.0048(x – 50)2 + 6 (This is correct)

y = 0.0048(x – 6)2 + 50

The value of a is 0.0048.

Given that,

The main cable of a suspension bridge forms a parabola described by the equation,

\(\rm y = a(x-50)^2+6\)

We have to find,

The value of a.

According to the question,

The given relationship between the variables x and y is,

\(\rm y = a(x-50)^2+6\)

In the given graph the points of the parabola are (30, 7.92), (50, 6), and (70, 7.92)

1. The value of an at the point (30, 7.92) is,

\(\rm y = a(x-50)^2+6\\\\7.92 = a (30-50)^2 +6\\\\7.92 = a(-20)^2 + 6\\\\7.92 = 400a +6\\\\7.92 -6 = 400a\\\\1.92 = 400a\\\\a = \dfrac{1.92}{400}\\\\a = 0.0048\)

2. The value of an at the point (70, 7.92) is,

\(\rm y = a(x-50)^2+6\\\\7.92 = a (70-50)^2 +6\\\\7.92 = a(20)^2 + 6\\\\7.92 = 400a +6\\\\7.92 -6 = 400a\\\\1.92 = 400a\\\\a = \dfrac{1.92}{400}\\\\a = 0.0048\)

3.  The value of an at the point (50, 6) is an infinite solution the value of a is not defined at the points.

Hence, The value of a is 0.0048.

For more details refer to the link given below.

https://brainly.com/question/25996776

they add up to 180 degrees

Step-by-step explanation:

what I don't understand is why the distance around the window has to be written twice.

but let's start with the circumference of the complete circle :

2×pi×r = 2×22/7 × 3.5

or as the boxes are lined

22/7 × 2 × 3.5 = 22/7 × 7 = 22 ft

the circumference of half the circle is then about

22/2 = 11 ft

the distance around the window is then

11 + 3.5×2 = 11 + 7 = 18 ft

Both of the triangles are RIGHT triangles. y X(0,13) Y(0,7) Z(0,3) (0,0) J.  the length of vertical segment XY is 6.

Generally, A part of a line that is totally vertical is referred to as a vertical line segment. This means that the two vertices that make up the segment's ends have the same x- and y-coordinates but different z-coordinates than one another.

The length of vertical segment XY can be found by subtracting the y-coordinate of point X from the y-coordinate of point Y.

In this case, the y-coordinate of point X is 13 and the y-coordinate of point Y is 7, so the length of vertical segment XY is

13 - 7 = 6.

Read more about vertical segment

https://brainly.com/question/28049753

#SPJ1

Complete Question not found

Image not found  

Answer:

A

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

\(r=\frac{\frac{4}{25} }{\frac{2}{5} } \\r=\frac{4}{25} \times \frac{5}{2} =\frac{2}{5} <1\\s_{\infty}=\frac{a}{1-r} =\frac{\frac{2}{5} }{1-\frac{2}{5} } =\frac{2}{5} \times \frac{5}{3} =\frac{2}{3}\)