Answer:
Where is the questions?
Step-by-step explanation:
Me + The upcoming championship high school football game is a big deal in your little town. The problem is, it is being played in the next biggest town, which is two hours away! To get as many people as you can to attend the game, you decide to come up with a ride-sharing app, but you want to be sure it will be used before you put all the time in to creating it. You determine that if more than three students share a ride, on average, you will create the app.
You conduct simple random sampling of 20 students in a school with a population of 300 students to determine how many students are in each ride-share (carpool) on the way to school every day to get a good idea of who would use the app. The following data are collected:
6 5 5 5 3 2 3 6 2 2
5 4 3 3 4 2 5 3 4 5
You and your partner will construct a 90% confidence interval and 95% confidence interval for the mean number of students who share a ride to school, then you will compare and interpret the results.
Part A: Decide which partner will construct each confidence interval, and then state the parameter and check the conditions.
Part B: Construct the confidence interval. Be sure to show all your work, including the degrees of freedom, critical value, sample statistics, and an explanation of your process.
Part C: Interpret the meaning of the confidence interval, and describe the difference in the width of the interval and the margin of error.
Part D: Use your findings to explain whether you should develop the ride-share app for the football game. = My brain hurts!!!
Supongamos que el 20% de los objetos fabricados por una empresa son defectuosos. Escogemos 4 objetos al azar. Hallar la probabilidad de que (a) 2 sean defectuosos, (b) 3 sean defectuosos, (c) ninguno sea defectuoso.
Responder:
0,1536
0.0256
0.4096
Explicación paso a paso:
Dado que :
p = 0,2
Número de ensayos, n = 4
1 - p = 1 - 0,2 = 0,8
Probabilidad de que 2 sean defectuosos;
Usando la fórmula de distribución binomial:
P (x = 2)
P (x = x) = nCx * p ^ x * (1 - p) ^ (n - x)
P (x = 2) = 4C2 * 0.2 ^ 2 * 0.8 ^ 2
P (x = 2) = 6 * 0,04 * 0,64
P (x = 2) = 0,1536
3 están defectuosos:
P (x = 3) = 4C3 * 0,2 ^ 3 * 0,8 ^ 1
P (x = 3) = 4 * 0,008 * 0,8
P (x = 3) = 0,0256
Probabilidad de que ninguno sea defectuoso:
P (x = 0) = 4C0 * 0.2 ^ 0 * 0.8 ^ 4
P (x = 0) = 1 * 1 * 0,4096
P (x = 0) = 0,4096
Usando la distribución binomial, se encuentra que hay una probabilidad de:
a) 0.1536 = 15.35% que 2 sean defectuosos.
b) 0.0256 = 2.56% que 3 sean defectuosos.
c) 0.4096 = 40.96% que ninguno sea defectuosos.
Para cada objeto, solo hay dos resultados posibles. O está defectuoso o no lo es. La probabilidad de que un objeto sea defectuoso es independiente de cualquier otro ítem, lo que significa que se utiliza la distribución binomial para resolver esta cuestión.
Distribución 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 éxitosEn este problema:
4 objetos, por eso [tex]n = 4[/tex].20% son defectuosos, por eso [tex]p = 0.2[/tex].Item a:
Esta probabilidad es P(X = 2), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 2) = C_{4,2}.(0.2)^{2}.(0.8)^{2} = 0.1536[/tex]
Probabilidad de 0.1536 = 15.35% que 2 sean defectuosos.
Item b:
Esta probabilidad es P(X = 3), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 3) = C_{4,3}.(0.2)^{3}.(0.8)^{1} = 0.0256[/tex]
Probabilidad de 0.0256 = 2.56% que 3 sean defectuosos.
Item c:
Esta probabilidad es P(X = 0), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{4,0}.(0.2)^{0}.(0.8)^{4} = 0.4096[/tex]
Probabilidad de 0.4096 = 40.96% que ninguno sea defectuosos.
Un problema similar es dado en https://brainly.com/question/25132113
Find all solutions of the equation in the interval [0, 2pi).
(2sinx-sqrt2)(3cscx-2sqrt3) = 0
The first three terms of a geometric sequence are given. Find the 8th term. Round to the nearest thousandth (if necessary).
2,4,8, ...
Answer:
2 4 8 16 32 64 128 256
Step-by-step explanation:
its doubleing evrey time
Answer:
7.594
Step-by-step explanation:
Solve for x
Need help on this
(my sister needs help with this)
Peter says 3
4 of a pizza is always the same
as 6
8 of a pizza. Nadia says while 3
4 and 6
8 are
equivalent fractions, 3
4 and 6
8 of a pizza could
represent different amounts.
Who is correct? Explain. Use a drawing to
justify your argument.
Use a counterexample to explain who
is correct
Answer:
Nadia is right
Step-by-step explanation:
if you use cross multiply 3/4 6/8. 8 x 3 = 24, 6 x 4 = 24, the two answer are both 24.
5/6 + (-4/9) -(-2).
Answer:
= 2 7/18
Step-by-step explanation:
Follow the PEMDAS order of operations.
Add and subtract left to right
=43/18 (as an improper fraction)
=2 7/18 (as a mixed number)
If the measure of each exterior angle is twice as large as each interior angle, the polygon must be a regular
Answer:
y+o+u+t+u+b+e +biggie smalls
Step-by-step explanation:
The polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.
What is a regular polygon?
A polygon is a geometric figure with a finite number of sides in two dimensions. On the sides or edges of a polygon, straight-line segments are joined end to end to form a closed shape. The vertices, also known as corners, are the points where two line segments meet and form an angle.
As we know, the interior angle is given by:
= 180(n - 2)
Sum of the exterior angle is 360 degree
(360/n) = 2[180(n - 2)]/n
360 = 360(n - 2)
n = 3
Number of sides n = 3
Polygon will be a triangle
Thus, the polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.
Learn more about the regular polygon here:
brainly.com/question/11810316
#SPJ2
I need help on homework.
J = (3,0)
K = (3,negative two)
L = [ 0, negative two]
I apologise for the way this is set out, half of the keys on my laptop do not work
Answer:
J- (3,0)
K- (3,-2)
L- (1,-2)
Reasoning- Just move the points to where it's asking.
How many 1/3-yard long pieces of wood can be cut from 1-yard long piece of wood?
Answer:
3 pieces
I hope this helps
Step-by-step explanation:
X(1/3) = 1
x/3 = 1
X= 1×3 = 3
can someone help me asap? pls
Answer:
Step-by-step explanation:
A triangular prism has three rectangular sides and two triangular faces. To find the area of the rectangular sides, use the formula A = lw, where A = area, l = length, and h = height. To find the area of the triangular faces, use the formula A = 1/2bh, where A = area, b = base, and h = height hope this helped somehow ;-; sry if not
I need help wit this
Answer:
i don't know how to explain the answew to you
Step-by-step explanation:
HELPP PLS. what do i put?
Answer:
(3, 2)
Step-by-step explanation:
Point B has the x-coordinate 3 and the y-coordinate 2, as can be read of directly from the graph. Therefore Point B is (3, 2).
Answer:
(3,2)
Step-by-step explanation:
That is its location on the graph
Is 6(2ab + 3a) equivalent to 3/4a(16b+24)?
PLEASEEEE HELP.
Answer: Yes they’re equivalent
Step-by-step explanation:
what’s the ratio 3:12:9 in its simplest form.
Answer:
1:4:3
Step-by-step explanation:
Hope that helps.
Have a good day and stay safe!
Answer: 1 : 4 : 3
Step-by-step explanation:
Their greatest factor is 3 so you had to divide all by 3.
3 ÷ 3 = 1
12 ÷ 3 = 4
9 ÷ 3 = 3
Ms. Yost has 20 boxes of markers . She buys 420% more boxes . How many boxes will she have in all
Graph y = -3.2 + 9. Then identify the x-intercept.
Answer:
9
Step-by-step explanation:
if you mean -3.2x+9 then the answer is 9 because you plug in 0 into x and solve the equation, you get the x intercept
A rectangular prism and its dimensions are shown in the diagram.
What is the total surface area of this rectangular prism in square inches?
Answer:
51.08 in.²
Step-by-step explanation:
S.A = (l x b) + (l × h) + (b × h)
= (8.2 in. × 3.4 in.) + (8.2 in. × 2 in.) + (3.4 in. × 2 in.)
= 27.88 in.² + 16.4 in.² + 6.8 in.²
= 51.08 in.²
Answer:51.08
Step-by-step explanation: First you see what you have to do then you put it all together and it pops up with 51.08
what is 2562 times 7287
Answer:
18,669,294
Step-by-step explanation:
Answer: it’s 18,669,294
Step-by-step explanation:
If a leaky faucet drips one ounce of
water per minute, approximately how
many gallons per day would that be?
A. 0.5625
B. 5.625
C. 1.125
D. 11.25
Answer:
join kvp-cgtc-yjz
Step-by-step explanation:
1.125 is the answer
EXTRA POINTS- Find the volume of the following solids
Answer: Their are 40 cm salsa in the jar.
1500cm are missing in the jar.
Step-by-step explanation:
Because cm is 10 and if you multiply 10x15 you will get 1500. If you multiply 10 and 4 you will get 40.
Please i need help ASAP
PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!
What is the missing side?
Answer:
18. lol
Step-by-step explanation:
Answer:
using the Pythagoras theorem,
[tex]a { }^{2} + b {}^{2} = c {}^{2} [/tex]
144+225=c squared
369=c sqared
13=c
so, your unknown value is 13
Solve for x ! giving brainly
Answer:
[tex]x = 16[/tex]
Step-by-step explanation:
[tex]3x + 5 + 9x - 19 = 180[/tex]
[tex]12x - 12 = 180[/tex]
[tex]12x = 180 + 12[/tex]
[tex] \frac{12x}{12} = \frac{192}{12} [/tex]
[tex]x = 16[/tex]
hope it helps you
At what value of x does the graph of the following function F(x) have a
vertical asymptote?
F(x)= 1/x+2
A. 2.
B. -2
C. -1
D. 0
Answer:
B
Step-by-step explanation:
Given
f(x) = [tex]\frac{1}{x+2}[/tex]
The denominator cannot be zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the value that x cannot be and if the numerator is non zero for this value then it is a vertical asymptote.
x + 2 = 0 ⇒ x = - 2
The equation of the vertical asymptote is x = - 2
. Coach Bryant schedules soccer practice from 4:00 PM to 5:15 PM. His team
spends 10 minutes stretching and ½ hour passing the ball. The rest of the
time is spent on skill drills. How much time does Coach Bryant’s team spend
on skill drills? Use the number line to help you solve.
Start practice is 4:00 pm
End Practice is 5:15 pm
Answer Choices:
A. 30 minutes
B. 35 minutes
C. 75 minutes
D. 65 minutes
Answer:
B
Step-by-step explanation:
4.00 minus 5.15 is 1.15
1.15 minus 10 minus 30 is 35
WILL GIVE BRAINLIEST TO CORRECT ABSWER. can someone please solve 2,4,6, and 8
Answer:
pls resnap, i tried to zoom in but i can't see clearly
Solve the inequality 4/3 < -8/3y.
Answer:
The answer to this inequality is y < -1/2.
Hope this could help you! (*^წ^*)
Answer:
[tex]y<-\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\frac{4}{3}<-\frac{8}{3}y[/tex]
[tex]-\frac{8}{3}y>\frac{4}{3}\\[/tex]
[tex]\left(-\frac{8}{3}y\right)\left(-1\right)<\frac{4\left(-1\right)}{3}[/tex]
[tex]\frac{8}{3}y<-\frac{4}{3}[/tex]
[tex]3\cdot \frac{8}{3}y<3\left(-\frac{4}{3}\right)[/tex]
[tex]8y<-4[/tex]
[tex]\frac{8y}{8}<\frac{-4}{8}[/tex]
[tex]y<-\frac{1}{2}[/tex]
Hope this helps!
All the love, Ya boi Fraser :)
x - 21 = 19
x = please help
Answer:
x=40
Step-by-step explanation:
plz make the other person the brainliest thanks!
5x(12-4)+3=?
PLEASE HELP WILL MARK BRAINLIEST!!!!!
Answer:
D. 43
Step-by-step explanation:
first do everything inside paranthesis (12-4)=8
then multipy 8 by 5= 40
40+3=43
hope this helps
Answer:
43
Step-by-step explanation:
Please help i need it as fast as possible
Answer:
a
the answer is Adjacent Angeles
Step-by-step explanation:
i hope it helps u