The sum of probabilities is equal to 1, so the probabilities are correctly normalized.
To perform the tasks using R, first, make sure you have R and RStudio installed on your computer. Then, follow these steps:
Step 1: Enter the data into R.
# Enter the data
x <- c(1, 2, 3, 4)
f_x <- c(0.2, 0.5, 0.2, 0.1)
Step 2: Plot the probability mass function (PMF).
# Plot the probability mass function
plot(x, f_x, type = "h", lwd = 10, col = "blue", xlab = "X", ylab = "P(X)", main = "Probability Mass Function")
Step 3: Verify that the probabilities add up to 1.
# Verify that the probabilities add up to 1
sum_probabilities <- sum(f_x)
print(paste("Sum of probabilities: ", sum_probabilities))
Step 4: Calculate the cumulative distribution function (CDF) and plot it.
# Calculate the cumulative distribution function
cdf <- cumsum(f_x)
# Plot the cumulative distribution function
plot(x, cdf, type = "s", lwd = 3, col = "red", xlab = "X", ylab = "F(X)", main = "Cumulative Distribution Function")
Sum of probabilities = 0.2 + 0.5 + 0.2 + 0.1 = 1
The sum of probabilities is equal to 1, so the probabilities are correctly normalized.
Make sure to execute each step in the RStudio console or script. The plots will appear in separate windows, and the sum of probabilities will be displayed in the console. The PMF plot will show vertical lines with heights corresponding to the probabilities, and the CDF plot will show a step function.
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A farmer goes to the market
with $100 cash. He must buy
exactly 100 animals. There are
cows, geese and chicken for
sale. A cow costs $15, a goose
is $1 and a chicken costs $0.25.
He must buy at least one of
each animal and has to spend
all his money. What does the
farmer buy?
Answer: 6 cows,8 chickens,8 goose
Step-by-step explanation: Add 15+.25+1=16.25
16.25x4=65+35-32.5=2.5
6 animals each right now
6 cows
8 chickens
Which of the following statements are true of the hypotenuse of a right triangle?
Its length is the sum of the lengths of the other two sides.
It is one of the legs.
It is the longest side of a right triangle.
It is opposite the right angle.
It forms a right angle with an adjacent side.
Answer:
It is the longest side of a right triangle.
Step-by-step explanation:
Hope this helps!
If not, I am sorry.
Classify the following triangle. Check all that apply.
A. Isosceles
B. Equilateral
C. Obtuse
D.Right
E Scalene
F. Acute
Answer:
I will list main feature for each property and you can choose. You can comment if you want to check or have questions
Step-by-step explanation:
Isosceles - two sides are equal
Equilateral - all sides are equal
Obtuse - one angle is greater than 90 degrees
Right - one angle is equal to 90 degrees
Scalene - none of the sides is equal
Acute - all angles are less than 90 degrees
Go down the list and see if it's true or false about the given triangle
Find the sum of first five multiple of 5
Answer:
75
Step-by-step explanation:
The first five multiples of 5 are 5, 10, 15, 20, and 25. The sum of the first five multiples of 5 is 75.
please help me this is due very soon :( ill pick brainliest and 5 stars and even go to ur profile for a thanks just pls help me with this
18 points here someone help me please
The average atomic mass of the element in the data table is given as follows:
28.1 amu.
How to calculate the mean of a data-set?The mean of a data-set is given by the sum of all observations in the data-set divided by the cardinality of the data-set, which represents the number of observations in the data-set.
For the weighed mean, we calculate the mean as the sum of each observation multiplied by it's weight.
Hence the average atomic mass of the element in the data table is given as follows:
0.922297 x 27.977 + 0.046832 x 28.976 + 0.030872 x 29.974 = 28.1 amu.
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Which term has the definition "A conclusion based on evidence"?
a. Data
b. Bias
c. Inference
d. Sample
Answer:
The answer would be C. Inference
Solve for x using
cross multiplication
2x + 1 = x+5
2x + 1
3
x = [?]
Step-by-step explanation:
\( \frac{2x + 1}{3} = \frac{x + 5}{2} \\ 2(2x + 1) = 3(x + 5) \\ \: \: \: \: 4x + 2 = 3x + 15 \\ 4x - 3x = 15 - 2 \: \\ \: \: \: x = 13\)
Rae earns $60 for playing music on Saturday nights at the local coffee house. She makes an average of $5.25 in tips per hour. Write the function of Rae's earnings, and solve for how much she would make after 4 hours. (1 point) a y
If x is an even integer greater than 3, then, in terms of
what is the next greatest even integer?
A. X^2
B. 2x
C. X+3
D. X+2
Answer:
x^2
Step-by-step explanation:
Any even number raised to two is even.
Eg: 4^2 = 16
12^2 = 144
Etc...
And
Any odd number raised to two is odd.
Eg: 5^2 = 25
13^2 = 169
Etc...
And also x^2 is greater than 2x & x+3 & x+2
Draw the cross-sectional effect diagrams for the beam whose loading condition is given in the figure ({N}, {T}, {M})
A cross-sectional effect diagram, also known as an axial force-shear force-bending moment diagram or simply an internal force diagram, is a graphical representation that shows the distribution of internal forces (axial force, shear force, and bending moment) along the length of a structural member, such as a beam or column.
To draw the cross-sectional effect diagrams for the beam whose loading condition is given in the figure, we need to follow these steps:
Step 1: Identify the type of loadingFor this question, the loading conditions are {N}, {T}, {M}. So, the loading types are axial force, shear force, and bending moment.
Step 2: Draw the cross-sectional diagram of the beam. We need to draw the diagram of the cross-section of the beam in the direction of the forces acting on the beam. In this case, it will be a rectangular beam.
Step 3: Draw the effect diagrams After drawing the cross-sectional diagram, we need to draw the effect diagrams for each loading condition.
The effect diagrams are as follows: 1. Axial force diagram (N):In this case, the axial force is positive (+) which means it is a tensile force. 2. Shear force diagram (T):The shear force is negative (-) from x = 0 to x = 1, which means the shear force is acting downward. It is zero at x = 1 and then becomes positive (+) from x = 1 to x = 2, which means the shear force is acting upward. 3. Bending moment diagram (M):The bending moment is zero at x = 0, becomes negative (-) from x = 0 to x = 1, reaches a minimum at x = 1, and then becomes positive (+) from x = 1 to x = 2.
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The measures of the angles of a triangle are shown in the figure below solve for x
108°
X°
47°
Answer:
108+47=155
180-155=125
x=180
angles in a triangle add up to 180
find the area of the region that is bounded by the given curve and lies in the specified sector. r = 9 cos(), 0 ≤ ≤ /6
The area of the region bounded by the curve r = 9cos(θ) and the sector 0 ≤ θ ≤ π/6 is \($27\pi/8 - 81/8\times \sqrt{3}$\)
The curve r = 9cos(θ) is a polar curve that forms a half-circle with a radius of 9/2. To find the area of the region bounded by this curve and the sector 0 ≤ θ ≤ π/6, we can use the formula for the area of a polar region:
\($A = \frac{1}{2} \int_{a}^{b} r(\theta)^2 d\theta$\)
In this case, a = 0 and b = π/6, and the curve is given by r(θ) = 9cos(θ). Substituting these values into the formula, we get:
\($A = \frac{1}{2} \int_{0}^{\frac{\pi}{6}} (9\cos(\theta))^2 d\theta$\)
Simplifying and evaluating the integral gives:
\(A = \frac{1}{2} \int_{0}^{\frac{\pi}{6}} 81\cos^2(\theta) d\theta\\\\ = \frac{1}{2}\left(\frac{81}{2}\cdot\frac{\pi}{6}+\frac{81}{4}\cdot\sin\left(\frac{\pi}{6}\right)\right)\\ \\ = \frac{27\pi}{8} - \frac{81}{8}\sqrt{3}\)
Therefore, the area of the region bounded by the curve r = 9cos(θ) and the sector 0 ≤ θ ≤ π/6 is \($27\pi/8 - 81/8\times \sqrt{3}$\)
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greta has a vegetable garden. she sells her kudasai produce at the local farmer's market. one saturday she sold $200 worth of vegetables - peppers, squash, tomatoes and corn. greta received the same amount of money for the peppers as she did for the squash. the tomatoes brought in twice as much as the peppers and squash together. the money she made from corn was $8 more than she made from the other three kinds of vegetables combined. how much did greta receive for each kind of vegetable? be sure to explain how you solved the problem and how you know you are correct.
Greta received $26.29 for each pepper and squash, $52.58 for tomatoes, and $133.45 for corn.
To solve this problem, it is necessary to use algebraic equations. Let's consider the given problem:
Greta sold $200 worth of vegetables. She received the same amount of money for the peppers as she did for the squash. Let the price of each pepper and each squash be x.
Then she received 2x from the tomatoes. The total amount of money received from the tomatoes, peppers, and squash is 2x + x + x = 4x. The money she made from corn was $8 more than she made from the other three kinds of vegetables combined.
Therefore, if we add the amount of money made from corn, the total amount becomes 4x + 8.
We now know that the total amount of money from the sale of all four vegetables is $200. Thus, 4x + 8 + y = 200, where y is the amount received from the corn.
4x + y = 192.
We know that y is 8 dollars more than the sum of the other three vegetables. That is, y = 2x + x + 8 = 3x + 8.Substitute the value of y into the equation. 4x + 3x + 8 = 192.
7x = 184.
x = 26.29
Let the price of corn be c. Then,c = (2x + 2x + 8) + x = 5x + 8 = 133.45So, Greta received $26.29 for each pepper and each squash, $52.58 for the tomatoes, and $133.45 for the corn.
In summary, Greta received $26.29 for each pepper and squash, $52.58 for tomatoes, and $133.45 for corn.
How do you know you are correct?
The total amount of money Greta received should be equal to $200. So, let's check if this is true or not: $26.29 (pepper) + $26.29 (squash) + $52.58 (tomato) + $133.45 (corn) = $200.01
Hence, our answer is correct.
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Shauna needs to buy 4 new tires and get an oil change for her car. An oil change costs $47.00 and each tire costs the same amount. If she spent a total of $335.00, how much did each tire cost?
Answer:
$72
Step-by-step explanation:
Let t = Tires
Let O = Oil change
Given the following data;
Oil change, O = $47
Translating the word problem into an algebraic equation, we have;
4t + O = $335
Rearranging the equation, we have;
\( 4t = 335 - O\)
Substituting the value of O;
\( 4t = 335 - 47\)
\( 4t = 288\)
\( t = \frac {288}{4}\)
t = 72
Therefore, the cost of each tire is $72.
The sum of four consecutive integers is thirty four. What are the integers?
Answer:
Hi there!
Your answer is:
7, 8, 9, 10
Step-by-step explanation:
to determine this:
x, x+1, x+2, x+3 = 34
x+ x+1 +x+2 + x+3 = 34
Combine like terms!
4x +6 = 34
-6
4x = 28
/4
x = 7
SO:
plug 7 into your equation to determine integers!
7, (7+1), (7+2), (7+3)
7, 8 , 9, 10
I hope this helps!
this is a one step equation pls help
Answer:
$58
Step-by-step explanation:
James needs $125 total but needs $67 more for it.
You can find how much he has by doing 125 - 67 = 58
please help me right now fast please !!!!!! im being timed
( only right answer)
Toby has $70 saved.He is saving $15 more each week.In how many weeks will he have $280 saved to buy the new skateboard he wants?
Answer:
14 weeks
Step-by-step explanation:
Let's create and equation to display this situation. Toby already has $70 saved, so that is not the variable and no x should go next to it. He is saving $15 more each week. Lastly, we want to end up with $280 saved. The equation will look like this, given the information:
15x + 70 = 280
To find how many weeks it will take, solve the equation!
15x = 210 Subtract 70 from 280
x = 14 Divide 210 by 15
Therefore, it will take Toby 14 weeks to save up for a new skateboard.
Hope this helps! If you have any questions about my work, please let me know down in the comments!
Amani earns 41 dollars per week working part-time at a book store. She makes one dollar more for each book that she sells. The amount, A (in dollars), that
Amani earns in a week if she sells b books is given by the following.
A=41+b
How much does Amani earn in a week if she sells 18 books?
Amani earns 59 dollars in a week if she sells 18 books.
Amani earns a base amount of $41 per week for working part-time at the bookstore. In addition to that, she earns an extra dollar for each book she sells. The equation A = 41 + b represents her total earnings, where A represents the amount she earns and b represents the number of books she sells.
To find out how much Amani earns in a week if she sells 18 books, we substitute the value of b (18) into the equation:
A = 41 + 18
This simplifies to:
A = 59
Therefore, if Amani sells 18 books in a week, she will earn $59.
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Lyle uses a streaming service to watch movies. Last month he paid $26.91 and watched 9 movies. If he watches 11 movies this month, how much will he pay the steaming service?
A. $32.89
B. $26.91
C. $2.99
D. 3.68
Answer:
A. $32.89
Step-by-step explanation:
Take the amount and divide by the number of movies watched
26.91 / 9 =2.99
Now multiply by the new number of movies he wants to watch, 11
2,99 *11
32.89
Answer:
A) $32.89
Step-by-step explanation:
We divided 26.91 by 9 to find how much it is per movie
26.91/9
2.99
It is 2.99 for 1 movie so now we multiply by 11 to find all 11 movies price
2.99x11
$32.89
Hopes this helps please mark brainliest if you would like to learn cross multiply way just let me know
The dimensions of a rectangular prism are 24 ft x 20 ft x 15 ft. What is the surface area
Answer:
2280 ft^2
Step-by-step explanation:
A rectangular prism has 6 faces. Each pair of opposite faces is congruent.
surface area = 2LW + 2LH + 2WH
surface area = 2(24 ft)(20 ft) + 2(24 ft)(15 ft) + 2(20 ft)(15 ft)
surface area = 960 ft^2 + 720 ft^2 + 600 ft^2
surface area = 2280 ft^2
An arts and crafts store sells sheets of stickers. Use the table to write an equation you can use to find the total cost y in dollars for x sheets of stickers.
Answer:
y = 2.35x
Step-by-step explanation:
(21.15-16.45)/(9-7) = Slope = 2.35
------
y = ax + b
y = 2.35x + b
------
Plug it in
------
16.45 = 2.35(7) + b
16.45 = 16.45 + b
b = 0
------------
y = 2.35x
x−2y=10
x+3y=5
Solve each system of equations by elimination. Clear identify your solution.
Answer:
(8, - 1 )
Step-by-step explanation:
x - 2y = 10 → (1)
x + 3y = 5 → (2)
subtract (2) from (1) term by term to eliminate x
(x - x) + (- 2y - 3y) = 10 - 5
0 + (- 5y) = 5
- 5y = 5 ( divide both sides by - 5 )
y = - 1
substitute y = - 1 into either of the 2 equations and solve for x
substituting into (2)
x + 3(- 1) = 5
x - 3 = 5 ( add 3 to both sides )
x = 8
solution is (8, - 1 )
Answer:
x = 8, y = -1.
Step-by-step explanation:
x - 2y = 10
x + 3y = 5 Subtracting this equation from the first one:
0 - 5y = 5
y = -1
Plug y = -1 in the second equation:
x + 3(-1) = 5
x - 3 = 5
x = 5 + 3
x = 8.
multiple sentence for 8/4
Answer:
32
Step-by-step explanation:
8x4= 32
please help i don’t understand
9514 1404 393
Answer:
3
Step-by-step explanation:
Vertical angles share a vertex point, and have opposite rays for sides. In short, they are across the point of intersection from each other. Vertical angles do not have a common side (they are not adjacent).
The first part of the problem is to identify angle NCA. That is shown in red in the attachment. The vertical angle is across the point of intersection. It is angle 3.
you would like to create a rectangular vegetable patch with an area of 32 sq. ft. to grow oranges. the fencing for the east and west sides costs $4 per foot, and the fencing for the north and south sides costs only $2 per foot. what are the dimensions of the vegetable patch with the least expensive fence? let the variable x denote the length of the east and west sides of the garden and let the variable y denote the length of the north and south sides of the garden. you and your friends individually set up a solution for the optimization problem using these variables. who set up the problem properly?
The maximum and minimum measurements are 5 and -3 respectively.
f ( x ) = -x^3 +3x^2+ 45 x + 10
f' l x ) = 0
0 = - 3x^2 +6x +45
x = 5,- 3.
f ( 4 ) = - ( 4 )^3+ 3( 4 )^ 2 + 45 ( 4 ) + 10 = 174
f ( - 4 ) = - ( - 4 )^3 + 3( - 4 )^2 + 45(- 4) + 10 = - 58
f ( - 3 ) = -(- 3 )^3 + 3 ( - 3)^2 + 45 (- 3) + 10 = - 7 1
+ ( 5 ) = -(5)^3 + 3(5 )^2 +45(5)+ 10 = 185
Absolute maximum = maxis{ f(4 ),f(5),f(-4),f( - 3 )}
= 185 at x=5
Absolute mininum=minis{f(4 ),f(5),f(-4),f( - 3 )}
= - 71 at x= -3
In light of this, the maximum and minimum values are 5 and -3, respectively.
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Solve the system of equations by elimination: -6x + 2y = -4 and -5x + 5y = 30
Answer:
x = 4
Step-by-step explanation: hope this helps!!
What is the image of the point (3, 4) after a rotation of 90° counterclockwise about
the origin?
Answer:
(-4,3)
Step-by-step explanation:
the rule for 90⁰ counterclockwise is (-y,x).
The delivery charge and daily rate to lease a construction crane are listed below for two companies.
High Top Cranes charges $744 for delivery and $3,290 per day.
Big Lift Equipment charges $1,428 for delivery and $3,214 per day.
If Builder's Construction Company leases a crane for 11 days, which leasing company has a lower total cost?
Answer: Big Lift Equipment
Step-by-step explanation:
From the question,
High Top Cranes charges $744 for delivery and $3,290 per day. Since Builder's Construction Company leases a crane for 11 days, the cost will be:
= $744 + $3290(11)
= $744 + $36190
= $36934
Big Lift Equipment charges $1,428 for delivery and $3,214 per day. Since Builder's Construction Company leases a crane for 11 days, the cost will be:
= $1428 + $3214(11)
= $1428 + $35354
= $36782
Based on the calculations, Big Lift Equipment has a lower cost