Usando la distribución binomial, se encuentra que hay una probabilidad de 0.0022 = 0.22% que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos.
Para cada estudiante, solo hay dos resultados posibles. O prefieren la presentación de 500 gramos, o prefieren la de 1500 gramos. La decisión de cada estudiante es independiente de otros estudiantes, o que implica que se usa la distribuición binomial.
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. x es la probabilidad de éxito en una sola prueba. p es la probabilidad de éxito en un solo ensayo.
En este problema:
20 amas de casa, o sea, [tex]n = 20[/tex].5% prefieren lo detergente de 1500 gramos, o sea, [tex]p = 0.05[/tex].La probabilidad de exactamente 5 es P(X = 5).[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 5) = C_{20,5}.(0.05)^{5}.(0.95)^{15} = 0.0022[/tex]
Probabilidad de 0.0022 = 0.22% que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos.
Un problema similar es dado en https://brainly.com/question/22304471
X^2+x+2=0. Solve for x
Answer:
no solution
Step-by-step explanation:
Steps are in order in the images below;
Last step:
there are no real solutions because the discriminant is negative
The square root of a negative number is not a real number
=−7
3. At a cross country race, Ariela's heart beats 120 times in 1 minute. How many times does i
beat in 45 seconds?
Answer:
vgbsmihgdjuvs
ihfriguiuvgrlgr
what are the products of these problems: 4.3 x 7.2 0.3 x 24 0.9x1
Answer:
1. 30.86 2. 7.2
Step-by-step explanation:
Hopes this helps
Answer:
4.3 × 7.2 = 30.960.3 × 24 = 7.20.9 × 1 = 0.9Step-by-step explanation:
1. Simple multiplication. Multiply 4.3 and 7.2
2. Simple multiplication. Multiply 0.3 and 24
3. Simple multiplication. Multiply 0.9 and 1
==>> Result 1: 30.96
==>> Result 2: 7.2
==>> Result 3: 0.9
Super hero academy's ratio of boys to girls is 5:3. If 7th grade has 150,
7th grade students how many boys and girls are in 7th grade?
Answer:
94 boys and 56 girls.
Step-by-step explanation:
150/8 = 18.75 = x
b=x*5 = 94
g=x*3 = 56
b+g=150
Looking at the question, we see that the ratio of boys to girls is 5:3, the total is 8. We are trying to find what the ratio of boys to girls is while the total is 150. Now, we can easily divide 150 by 8, finding one part of our answer! 150 ÷ 8 ≈ 18 [tex]\frac{3}{4}[/tex]. now to multiply that by the amount of boys and girls (5:3), 18 [tex]\frac{3}{4}[/tex] × 5 = 93 [tex]\frac{3}{4}[/tex] and 18 [tex]\frac{3}{4}[/tex] × 3 = 56 [tex]\frac{1}{4}[/tex]. After we round we get 94:56.
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I hope this helps you! If you can't understand, try to comment and I'll try my best to help. Thanks! -Doodle
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what is the product of 0.35 and 0.46? (with solution please)
Step-by-step explanation:
Hope this helps you ☺️☺️☺️
Write the equation of a square root function that has the following graph.
9514 1404 393
Answer:
g(x) = √(x -5) +7
Step-by-step explanation:
To translate the graph of f(x) by h units horizontally and k units vertically, the function is transformed to ...
g(x) = f(x -h) +k
To translate f(x) = √x by 5 units horizontally and 7 units vertically, the function is transformed to ...
g(x) = √(x -5) +7
In the given figure ST | PQ, If 2PS = 3SR and ST = 9 then find PQ
pls answer.
40 points.
Answer:
Ar.ofΔPST
=
4
9
Step-by-step explanation:
In figure ST || QR
and PS= 3 cm & RS= 4cm
In ΔPST & PQR
QPR=∠TPS [Common]
∠PRQ=∠PST [corresponding]
ΔPQR∼ΔPST [AA similarity]
Now
In similar triangles ratios of the area of triangles is equal to the ratio of the square of corresponding sides.
Ar. ofΔPRQ
Ar.ofΔPST
(
3+4
3
)
2
=
49
9
Hence [
Ar.ofΔPRQ
Ar.ofΔPST
=
49
9
]
Determine whether the triangles are similar
Step-by-step explanation:
ur are choosing correct option as,
W = Y ( 90° given )
VW = YZ ( as both are || to eachother so their length is same )
angle X = X ( vertically opposite angle)
therefore, ∆WVX = ∆ZYX are congruent according to SAS congruency rule/criteria.
hope this answer helps you dear..take care and may u have a great day ahead and also ur exam/test goes well!.
A rectangular prism has a height of 12 yards and a base with area of 53 square yards what is its volume
Answer:
16
Step-by-step explanation:
Hey !! Can anyone help me with this question please and thank you !
Answer:
x = 22
Step-by-step explanation:
6x+3 = 7x - 19
22 = x
good day
como se escribe 454,505,505 en letra
Answer:
148.16en ltera
Step-by-step explanation:
graph the line with slope 8 and y-intercept -9
1.7 PS-6
Quesu
Challenge You buy 3.17 pounds of pears, 1.45 pounds of oranges, and 1.77 pounds of grapes. What
is your total bill?
Grocery Store Prices
Item
Cost
Pears
$0.99 per
pound
Oranges $1.19 per
pound
Grapes
$1.29 per
pound
Your total bill is $
(Round to the nearest cent as needed.)
Ento
Step-by-step explanation:
the price of:
3.17 pounds of pears = 3.17 × 0.99
= $3.14
1.45 pounds of oranges = 1.45 × $1.19 = $1.73
1.77 pounds of grapes = 1.77 × $1.29 =$2.28
so , the total bill = 3.14+ 1.73+ 2.28 = $7.15
Find prices of all
pears
3.17(0.99)$3.14Oranges
1.19(1.45)$1.73Grapes
1.77(1.29)$2.28Total
2.28+1.73+3.14$7.15Decide whether it would be more convenient to solve the system of equations by substitution or elimination.
2 = 4y - 10
7x +12y = 7
The more convenient method to solve the given system of equations is by elimination.
Solving systems of linear equationFrom the question, we are to determine whether it would be more convenient to solve the system of equations by substitution or elimination
The given system of equations is
2 = 4y - 10 ----------- (1)
7x +12y = 7 ----------- (2)
In equation (1), we can see that there is no variable x in the equation. Thus we can solve for y and then substitute the value of y into equation (2).
That is,
From equation (1)
2 = 4y - 10
2 + 10 = 4y
12 = 4y
12/4 = 4y/4
3 = y
∴ y = 3
Now, we can substitute the value of y into equation (2) to determine the value of x
Hence, the more convenient method to solve the given system of equations is by elimination.
Learn more on Solving system of linear equations here: https://brainly.com/question/13729904
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A square has side of length y units what is the area?
if 1/2gallon of paint cover 1/6 of a wall then how much paint is needed for the entire wall?
Answer:
0.5 gallons paints 1/6of the wall..
0.5+0.5+0.5+0.5+0.5+0.5=> 3 gallons paint the wall
Plz help, I don’t understand
The gymnastics center where Shannon works has a rectangular pit filled with foam. The pit is 6 meters long, 5 meters across, and 3 meters deep. What is the volume of the pit?
Answer:
90 meters
Step-by-step explanation:
Volume = length x width x height
V = 6 x 5 x 3
V = 90
a local hamburger shop sold a combined total of 641 hamburgers and cheeseburgers on sunday. there were 59 fewer cheseburgers sold than hamburgers. how many hamburgers were sold on sunday?
Answer: 700 Hamburgers
Answer:
I believe the answer is 700
Use the distributive property to remove the parentheses.
-3(-6y +3w-2)
Answer:
18y-9w+6
Step-by-step explanation:
-3*-6y=18y
-3*3w=-9w
-3-2=6
so, 18y-9w+6
Answer:
18y-9w+6
Step-by-step explanation:
The distributive property tells that because the -3 is outside of the parentheses, we multiply all values inside the parentheses by -3.
So, -6y * -3 is 18y because two negatives cancel out, 3w * -3 equals -9w, and -2 * -3 is 6, again because two negatives cancel each other out.
We put this all together, the parentheses and -3 is removed, and the expression becomes 18y-9w+6.
Brainlisted for right answer!!! 25 points!!! Please help me!!! I really need this done!!!
Answer:
Step-by-step explanation:
While I can not give you the exact answer as it is a graph, it's worth noting that the function is in f(x) = mx + b form.
This means the first point with an x coordinate of 0 will start at 6, and for each increase in one on the x-axis, we add 2.4.
So, the first coordinate is (0,6), the next is (1,8.4), and so on until you reach the end. That shouldn't take very long provided you can compute addition mentally.
Hope this helps and Good Luck
Critical values are considered to be part of the
Answer:
critical value is considered part of the rejection region.
Step-by-step explanation:
hope this helps!
Help me and there will be an apple at your doorstep. (There might be some shipping issues)
Fill in the blank.
Answer:
9.30 maybe
Step-by-step explanation:
I just did mathz
Answer:
9.30
Step-by-step explanation:
Which table represents a linear function?
Answer:
Table 1 (leftmost)
Step-by-step explanation:
A linear function has a common difference between all of the x-values. This means that all the x-values change by the same amount relative to the change in y. In this case, the x-value increases by 1/2 every time that y increases by 1. The other tables do not work because their change is inconsistent. There is no number being added each time. Therefore, they are not linear. If you were to graph these tables, only table 1 would make a straight line.
Based on a poll
, among adults who regret getting tattoos, 14% say that they were too young when they got their tattoos. Assume that six adults who regret getting
tattoos are randomly selected, and find the indicated probability. Complete parts (a) through (d) below.
a. Find the probability that none of the selected adults say that they were too young to get tattoos
(Round to four decimal places as needed.)
The probability that none of the selected adults say that they were too young to get tattoos is 0.3512
What is Binomial probability distribution?The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
14% say that they were too young when they got their tattoos.
So, p= 0.14.
Six adults who regret getting tattoos are randomly selected
So, n=6.
Now, the probability that none of the selected adults say that they were too young to get tattoos.
P(X=0) = [tex]C_ {6.0} (0.14)^{0} (0.86)^{6}[/tex]
= 0.3512
Learn more about this concept here:
https://brainly.com/question/24123162
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I have attached the question below, if you could help me, I would really appreciate it.
Answer:
13/2
see the picture above
Answer:
[tex] \frac{4x - 1}{2} = x + 7 \\ 4x - 1 = 2(x + 7) \\ 4x - 1 = 2x + 14 \\ 4x - 2x = 1 + 14 \\ 2x = 15 \\ x = \frac{15}{2} \: or \: x = 7.5[/tex]
£35 in the ratio 3:4
Answer:15 and 25
Step-by-step explanation:
3:4= 7
35/7=5
5x3=15
5x4=20
What is the answer to 4(-x + 4) =12
Hey there!
4(-x + 4) = 12
4(-x) + 4(4) = 12
-4x + 16 = 12
SUBTRACT 16 to BOTH SIDES
-4x + 16 - 16 = 12 - 16
CANCEL out: 16 - 16 because it gives you 0
KEEP: 12 - 16 because it helps solve for the x-value
NEW (temporary) EQUATION: -4x = 12 - 16
12 - 16 = -4
NEW EQUATION: -4x = -4
DIVIDE -4 to BOTH SIDES
-4x/-4 = -4/-4
CANCEL out: -4/-4 (the LEFT side) because that gives you 1
KEEP: -4/-4 (the RIGHT side) because it gives you the result of the x-value
x = -4/-4
x = 1
Therefore, your answer is: x = 1
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
HELP!
Claymore electronics sold 81 computers and 52 printers last week. Twenty-five separate customers purchased computers and printers. How many customers purchased only computers.
Answer:
56!
Step-by-step explanation:
HOPE THIS HELPS
HAVE A NICE DAY!!
MARK BRAINLIEST IF POSSIBLE PLS! :D
How to do q6 (a) and (b)? please help!!!
ignore my draft haha
a)
The sides of small squares are x and y, therefore the side of the big square is x + y.
The shaded region has an area:
(x + y)² - x² - y² = x² + 2xy + y² - x² - y² = 2xyb)
After the dimension changes the new side lengths are:
x - 2 and y + 2Since x and y are integers greater than 1, the minimum value of x is 2 (x = 1 doesn't work as we get negative value of x - 2) and same of y is 3 as y > x.
With this the smallest possible area of the shaded region is:
2xy = 2*2*3 = 12 cm²