Usando la distribución binomial, se encuentra que el diseño de 4 componentes tiene mayor probabilidad de funcionar.
Para cada componente, solo hay dos resultados posibles. O están funcionando o no estan. La probabilidad de que un compoente estea funcionando es independiente de cualquier otro componente, lo que significa que se utiliza la distribución binomial para resolver esta cuestión.
Distribuición binomial:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
Los parámetros son:
n es el número de ensayos. p es la probabilidad de éxito en un ensayo. x es el número de éxitos.En este problema:
La probabilidad que un componente funcione es 0.9, o sea, [tex]p = 0.9[/tex].Diseño de 2 componentes:
2 componentes implica que [tex]n = 2[/tex].La probabilidad de funcionar es [tex]P(X \geq 1)[/tex], que es dada por:
[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]
En que:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{2,0}.(0.9)^{0}.(0.1)^{2} = 0.01[/tex]
Entonces:
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.01 = 0.99[/tex]
Diseño de 4 componentes:
4 componentes implica que [tex]n = 4[/tex].La probabilidad de funcionar es [tex]P(X \geq 2)[/tex], que es dada por:
[tex]P(X \geq 2) = 1 - P(X < 2)[/tex]
En que:
[tex]P(X < 2) = P(X = 0) + P(X = 1)[/tex]
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{4,0}.(0.9)^{0}.(0.1)^{4} = 0.0001[/tex]
[tex]P(X = 1) = C_{4,1}.(0.9)^{1}.(0.1)^{3} = 0.0036[/tex]
Entonces:
[tex]P(X < 2) = P(X = 0) + P(X = 1) = 0.0001 + 0.0036 = 0.0037[/tex]
[tex]P(X \geq 2) = 1 - P(X < 2) = 1 - 0.0037 = 0.9963[/tex]
[tex]0.9963 > 0.99[/tex], o sea, el diseño de 4 componentes tiene mayor probabilidad de funcionar.
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Use place value and properties of operations to find the sum.
5.8
+2.3
= _
Type a whole number or a decimal
Answer:
8.1
Step-by-step explanation:
Graph the linear function:
r(x)=2
i dont know
[tex] = 3 \sqrt[5]{3} [/tex]
A letter use to represent a number value is called
Answer:
A variable
Step-by-step explanation:
Whats 4+4+(6x168) and the answer in Spanish
given that x is an acute angle and cos x equals to 2 root 5/5 find without using mathematical tables or a calculator tan (90 - x)
Answer:
whats cos? i dont understand if its written in question please explain
Step-by-step explanation:
f(x)=10-9/2x
if f(x)=-53x find x
Answer:
x = -20/97
Step-by-step explanation:
f(x) = -53x is your output
so -53x = 10-9/2x
-53x - 10 = -9/2x
lets clear the fraction by multiplying each side by 2
-106x - 20 = -9x
-97x = 20
x = -20/97
When f(x) is equal to -53x, the value of x is approximately -0.2062. To find the value of x when f(x) is equal to -53x, we can set the two expressions equal to each other and solve for x:
Given: f(x) = 10 - (9/2)x , And: f(x) = -53x
Setting them equal to each other: 10 - (9/2)x = -53x
To solve for x, let's first get rid of the fraction. We can do this by multiplying the entire equation by 2: 2 * (10 - (9/2)x) = 2 * (-53x)
20 - 9x = -106x
Now, let's isolate the variable x on one side of the equation. Let's move the -9x term to the other side by adding 9x to both sides:
20 - 9x + 9x = -106x + 9x
20 = -97x
Finally, to find x, divide both sides by -97: x = 20 / -97
x ≈ -0.2062 (rounded to 4 decimal places)
So, when f(x) is equal to -53x, the value of x is approximately -0.2062.
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(WORTH 100 POINTS)On Monday, Latrena sent an email to 5 friends. On Tuesday, each of those friends sent an email to 5 different friends. On Wednesday, each person who received an email on Tuesday sent an email to 5 different friends. How many friends received an email on Wednesday? Enter your answer as a power by filling in the boxes.
Answer:
5 to the power of 3
Step-by-step explanation:
I took the K12 test :)
The number of friends who received an email on Wednesday can be obtained using the exponential relation between the initial number of mails and the number of days elapsed, which is 125 .
The initial number of friends who received an email = 5 friends. Number of days elapsed from Monday to Wednesday = 3 daysThe Number of people who received a mail on Wednesday can be expressed thus :
5³ = 5 × 5 × 5 = 125 friends.Therefore, 125 friends received an email on Wednesday.
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Which of the following represents, "The difference between a number and elght Is twenty-two"?
A. N-8=22
B. 8 - N= 22
C. 8 - 22 N
Answer:
A.
Step-by-step explanation:
The difference means subtraction. The number mean a variable which is N. Then it is 8 (is means equal sign). Then 22 is the answer. The answer is N-8=22.
Have a great day!
A side of a square is 10 cm longer than the side of an equilateral triangle. The perimeter of the square is 3 times the perimeter of the triangle. Select the equation that represents the scenario when x represents the side of the triangle.
Here's the solution :
Side of the equilateral triangle = x Side of square = x + 10perimeter of equilateral triangle = 3 × x = 3x
perimeter of square = 4 × (x + 10)
now, according to above statement :
permission (square) = 3 × perimeter (triangle)
that is :
[tex]4(x + 10) = 3 \times 3x[/tex][tex]4x + 40 = 9x[/tex][tex]9x - 4x = 40[/tex][tex]5x = 40[/tex][tex]x = 8[/tex]therefore, side of triangle = 8 cm
perimeter (triangle) = 8 × 3 = 24 cmside of square = 8 + 10 = 18 cmperimeter of square= 18 × 4 = 72 xmAnswer:
Let the side of the equilateral triangle = x
so the side of the square = x+10
The perimeter of the triangle = 3x
and the perimeter of the square = 4(x+10)
condition : the perimeter of the square is 3 times the perimeter of the triangle.
so, 4(x+10) = 3*(3x)
Step-by-step explanation:
How to simplify the following expressions?
1. 6x-3y+8x-(-4y-3y)
2. 1+8a/4-3+2a
Answer with Step-by-step explanation:
1. 6x-3y+8x-(-4y-3y)
14x-3y+4y+3y
14x+4y
1+8a/4-3+2a
-2+2a-2a
-2a
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Christian is driving on a long road trip. He currently has 12 gallons of gas in his car.
Each hour that he drives, his car uses up 1.25 gallons of gas. How much gas would be
in the tank after driving for 6 hours? How much gas would be left after t hours?
Gas left after 6 hours:
Gas left after t hours:
Submit Answer
attempt 1 out of 2 / problem 1 out of max 1
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Answer:
Gas left after 6 hours: 4.5 gallons
Step-by-step explanation:
multiply 1.25 by 6 which will be 7.50
then subtract 7.50 from 12 which will be 4.50
i think :)
An election is over and a new student body president has been elected. The new president received 3 votes for every vote received by his opponent. The new president received 2193 votes. How many votes did his opponent receive?
In the fourth grade at Jefferson elementary School, there are 125 students. In the fifth grade, there are 136 students. How many total students are there in fourth and fifth grade?
answer is 261
Step-by-step explanation:
add both numbers together
A bakery must pay the state 8% sales tax on this week's total sales of $2,050. How much sales tax will the bakery pay to the state for this week?
A. $164.00
B. $164.00
C. $256.25
D. $256.25
a service company charges a 5% service fee
Answeis is that
is that the whole qeustion
Step-by-step explanation:
where is the image
-2 as a decimal
Help if you can ik it’s simple I’m just very tired :)
If f(n) = -3n + 10 what is the 5th term???
After 12 years I shall be three times as old as I was 34years ago. Determine my present age
Answer:
the 34 yrs Is wrong it will be 4yrs only.
Step-by-step explanation:
Let my present age=x years
After 12 years my age=x+12 years
4 years ago my age =x−4 years
According to the question,
x+12=3(x−4)
⇒x+12=3x−12
⇒3x−x=12+12
⇒2x=24
or x= 24/2 =12 years.
∴ my present age is 12 years.
hope this helps you.
Write an equation for the description.
The length of a rectangle is twice its width. The perimeter of the rectangle is 130 feet.
Answer:
2x + 4x = 130
x = 21.7 feet
Step-by-step explanation:
Width: x
Length: 2x
2x + 2(2x) = 130
6x = 130
x = 130/6
x = 21.7 feet
Use function notation to write the equation of the line
please asap
Answer:
b
Step-by-step explanation:
b
When Sharon graduates from college, she accepts a job that pays $30,000 for the
first year with a promise of a 10% raise at the beginning of each of the next 9 years.
Samantha graduates the same year and accepts a job which pays $40,000 the first
year with a raise of $1,000 at the beginning of the next 9 years.
а
In which year will Sharon's annual salary first exceed Samantha
Answer:
year 6
Step-by-step explanation:
she will be at 48,000
the other girl will be at 46,000
The year in which the salary Sharon's first exceeds Samantha's salary if, is the 5th year Sharon graduates from college, she accepts a job that pays $30,000 for the is 5 years.
What is percentage?A percentage, often known as percent, is a division by 100. Percentage, which means "per 100," designates a portion of a total sum. 45 out of 100 is represented by 45%, for instance. Finding the percentage of a whole in terms of 100 is what percentage calculation is. Both manual calculation and the use of internet calculators are options.
Given:
Sharon's pay = $30000,
Raise percentage = 10%,
Samantha pays = $40000,
Raise by = $1000,
Calculate Sharon's pay as shown below,
Sharon's pay = 30000(1 + 0.10)⁴
Sharon's pay = 30000 × 1.77
Sharon's pay = $43923
Calculate pay of Samantha after 4 years,
The pay of Samantha = 40000 + 4 × 1000
The pay of Samantha = $44000
Thus, Sharon's annual salary first exceeds Samantha's after 4 years.
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Please show step by step. I will chose Brainlyest once it lets me. 5 s and thanks too. Please answer ASAP.
Select all that are equivalent to
Assume a not equal to 0
***please answer fast***
Answer:
1 and 3
Step-by-step explanation:
This simplifies by cancelling out the lesser, so it is 1/a^7
can also be simplified to a^-7
Answer:
Options 1 & 3
Step-by-step explanation:
Hope it helps!
Solve the following expression when
v = 10 and e= 5
2v ÷ e + 3
Answer: 7
Step-by-step explanation:
[tex]2(10) \div 5 +3\\\\20 \div 5 + 3\\\\4+3\\\\\boxed{7}[/tex]
1.25(−3.6)
??????????????????????????
Answer:
-4.5
Step-by-step explanation:
Answer:
-4.5
Step-by-step explanation:
1. Multiply 1.25 by -3.6:
[tex]1.25 * (-3.6)[/tex] [tex]-4.5[/tex]njsfkulrnfijrirjir help me help me help me help
Answer:
d.13/24
Step-by-step explanation:
Write that down the equation for the lines that is the graphs are depicted below
PLZ HELP 20 points
Find slope of line (m)
[tex]\\ \sf\longmapsto m=\dfrac{2-0}{1-0}[/tex]
[tex]\\ \sf\longmapsto m=2[/tex]
Putting in y=mx+b
[tex]\\ \sf\longmapsto y=mx+b[/tex]
[tex]\\ \sf\longmapsto 2=2(1)+b[/tex]
[tex]\\ \sf\longmapsto 2=2+b[/tex]
[tex]\\ \sf\longmapsto b=2-2=0[/tex]
Equation of the line
[tex]\\ \sf\longmapsto y=2x[/tex]
Answer:
y = 2xStep-by-step explanation:
The line passes through the origin and holds the point A(1, 2).
This is a proportional relationship:
y = kxConsidering the coordinates of the point A:
2 = 1*k ⇒ k = 2The line is:
y = 2xHELP LAST ATTEMPT !?!!!!!
Answer:
x=31
Step-by-step explanation:
2x+1=63 [Vertically opposite angles]
2x=63-1
x=62/2
x=31
Frankie charges 30$ per week for tutoring plus a 10$ sign up fee. Complete the table to show the relationship, then graph the table of values. WILL GIVE BRAINLIEST pls no bs answers
Answer:Answer:
8
Step-by-step explanation:
10(8) + 20 = 120
15 (8) = 120
The ABC manufacturing firm, the average withdrawal rate for product A is 20
cartons per day, safety stock is 5 days, order lead time is 10 days, and the
order quantity is 45 days.
Requirement: What are the maximum and average quantities of unit loads to be
stored? (Please help me solve this exercise in detail about the requirements of the question)
???????????????????????
Step-by-step explanation:
???????
Answer:
Answer:J is between H and K. If HJ=6x-5, JK=4x-6 and KH= 129, find the value of HJ
Explanation:J is between H and K. If HJ=6x-5, JK=4x-6 and KH= 129, find the value of HJ
Step-by-step explanation:
mark me as the brainliest