Answer:
A) PB M(b, m), we have;
b = 1
b = 2
b = 3
B) E(B) = 1.7
C) No they are not independent
Step-by-step explanation:
A) We are told that a shipment can be in 1 box for a small order, 2 boxes for a medium order, 3 boxes for a large order. Thus;
For PB M(b, m), we have;
b = 1
b = 2
b = 3
B) Factory Q is 60 miles from the company. Thus, under factory Q in the table, m = 60
Factory R is 180 miles from the company. Thus under factory R in the table, m = 180
Now;
P_B (b) for b = 1 which is small order is;
P_B (b) = 0.3 + 0.2 = 0.5
P_B (b) for b = 2 which is medium order is;
P_B (b) = 0.1 + 0.2 = 0.3
P_B (b) for b = 3 which is large order is;
P_B (b) = 0.1 + 0.1 = 0.2
Thus;
E(B) = Σb•P_B (b) = (1 × 0.5) + (2 × 0.3) + (3 × 0.2)
E(B) = 0.5 + 0.6 + 0.6
E(B) = 1.7
C) No, they are not independent. This is because from the table we are given, P_B,M at b = 1 and m = 60 is given as 0.3.
Whereas, for B and M to be independent, P_B,M at b = 1 and m = 60 has to be equal to (P_M(m) under m = 0.3) multiplied by P_B(b) for b = 1.
Instead what we have is P_M(m) under m = 0.3 as; 0.3 + 0.1 + 0.1 = 0.5. Which means (P_M(m) under m = 0.3) multiplied by P_B(b) for b = 1 gives;
0.5 × 0.5 = 0.25 which is not equal to P_B,M = 0.3 at b = 1 and m = 60
HELPP ILL GIVE BRAINLESS
Answer:
Scale Factor is 2.5
Step-by-step explanation:
Will someone double check me? I got b
Answer:
yes you're right :)
Step-by-step explanation:
you have to use the pythogram therom for this
a² + b² = c²
20² + 10² = c²
400 + 100 = c²
c = √500
i need the answer no playing around please and if the answer is right i will give you a thanks and full stars pleaseeeee
Answer:
50+50x
Step-by-step explanation:
they're asking you to use distributive property
so what you have to do is multiply everything that is in the parenthesis by 10
5x10=50
5x10x=50x
so the answer is 50+50x
have a great day :D
========================================================
Explanation:
To get this answer, we multiply the outer term 10 by each term inside
5*10 = 505x*10 = 50xI'm using the distribution rule or distributive property. So that's why (5+5x)10 is the same as 50+50x
We could arrange the terms to get 50x+50 if you wanted.
--------------------------
Extra info (optional section):
Let's say that instead of 10, we had a smaller value like 2
(5+5x)2 would mean we have two copies of (5+5x) added together
So we'd have (5+5x)+(5+5x) = (5+5)+(5x+5x) = 10+10x
Then note how the distributive property says
(5+5x)*2 = 5*2+5x*2 = 10+10x
This is one example that helps us see how the distributive property is correct.
A rainstorm in Portland, Oregon, has wiped out the electricity in about 7% of the households in the city. A management team in Portland has a big meeting tomorrow, and all 6 members of the team are hard at work in their separate households, preparing their presentations. What is the probability that none of them has lost electricity in his/her household
Answer:
0.647 = 64.7% probability that none of them has lost electricity in his/her household
Step-by-step explanation:
For each household, there are only two possible outcomes. Either they lost electricity, or they did not. The probability of a household losing electricity is independent of any other household. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
A rainstorm in Portland, Oregon, has wiped out the electricity in about 7% of the households in the city.
This means that [tex]p = 0.07[/tex]
6 members
This means that [tex]n = 6[/tex]
What is the probability that none of them has lost electricity in his/her household?
This is P(X = 0). So
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{6,0}.(0.07)^{0}.(0.93)^{6} = 0.647[/tex]
0.647 = 64.7% probability that none of them has lost electricity in his/her household
Which of these is NOT a Pythagorean triple?
what is the area of the triangle 10,24,26
Step-by-step explanation:
i d like to help but i fon knoeww
Siri is grocery shopping. She is buying macaroni. One box is 6 inches long, 1 inch wide and 9
inches tall. The second box is 3 inches long, 3 inches wide and 6 inches tall. Which box holds
more macaroni?
Answer:
The second box
Step-by-step explanation:
The volume of a pyramid can be given by the formula: V=31Ah. Where. A: Area of the V=(1/3)(B)(h)
multiply both sides by 3
3V=Bh
divide both sides by B
3V/B=h
Therefore, If it is wider it has more space to carry more items such as macaroni.
In a unit circle, the point (-0.5,0.866) lies on the terminal side of an angle, theta. What is the sine of this angle?
Answer:
Step-by-step explanation:
The unit circle has a hypotenuse of 1.
[tex]sin\theta=\frac{y}{h}\\ \\ sin\theta=0.866[/tex]
WILL GIVE BRAINLEIST SO PLZ HELP IM VERY DESPERATE!
Answer: easy is 6/5
Step-by-step explanation:
Here why 3/2 times 4/5
18, 12, 8, ...
Find the 10th term.
Answer:
-24
Step-by-step explanation:
18, 12, 8, 4, 0, -4, -8, -12, -18, -24
You are going down by 4 so by the time you get to the 10th term it will be a negative.
help me please :)))))))))))
Answer: Can you pleaes post the pic again it is not clear
Step-by-step explanation:
America paid 3% interest on a $3900 car loan for 5 years. How much interest did she pay on her car loan?
Answer:
If America paid 3% interest for a year
At simple interset ,
FV = Pv(1 + it)
FV = Future value
Pv = present value
i = interest rate
t= time
FV = Pv(1 + it)
= $3900( 1+ 0.03 x 5)
= $4485
FV = PV + interest
FV - PV = interest
$4485 - $3900 = interest
interest = $585
Step-by-step explanation:
Which is equivalent to P(z ≥ 1.4)?
Answer:
1-P(z<1.4)
Step-by-step explanation:
Trust me the answer is 1-P(z<1.4).
BTW the thing between 1 and P is a minus sign
Answer:
B. 1-P(z<1.4)
8%
B. 26%
Step-by-step explanation:
ANSWER NOW AND ILL GIVE BRAINLIEST THANKS
Answer and explaination:
a. 28
12/3=4
4*7=28
b. 9
21/7=3
3*3=9
4. Joe bought a car for $25,000 that was originally selling for $32,000. What percent discount did he receive?
Please help me I tired of keep asking. If you have a heart you would help me and give me the right answer Please (NO LINKS) (NO LYING )
Answer:quit
Step-by-step explanation:that looks lard
In the diagram below, O is circumscribed about quadrilateral ABCD. What is
the value of ?
Answer:
21
Step-by-step explanation:
Trust
The value of x is 21 because, in a quadrilateral, the sum of the opposite angles is equal to 180 degrees. option (A) is correct.
What is quadrilateral?
It is defined as the four-sided polygon in geometry having four edges and four corners and two pairs of congruent sides.
We have:
In the diagram below, O is circumscribed about quadrilateral ABCD.
In a quadrilateral, the sum of the opposite angles is equal to 180 degree
5x + 75 = 180
5x = 105
x = 21
Thus, the value of x is 21 because, in a quadrilateral, the sum of the opposite angles is equal to 180 degrees. option (A) is correct.
Learn more about the quadrilateral here:
brainly.com/question/6321910
#SPJ2
What is the area of a square thats 34 by 24? (I need someone with good theripist skills please T^T)
Answer: oh that's ava
Step-by-step explanation: ;w; I still don't know them-
Answer:
816
Step-by-step explanation:
also hazzy you can talk to me *hugs him* UwU dis ish toga btw
In ΔUVW, u = 190 cm, v = 380 cm and w=560 cm. Find the measure of ∠W to the nearest 10th of a degree.
Answer:
157.2
Step-by-step explanation:
delta math
The Ratio of Girls to Boys:
The ratio of boys to girls in a summer camp is 2:5.
there are 90 girls in the camp. How many boys are in
the camp?
Answer:
36:90
Step-by-step explanation:
Boys: Girls
2 : 5
Question: How many boys are there if there are 90 girls?
The question is basically asking an equivalent ratio...
Let x be the number of boys.
[tex]\frac{2}{5}[/tex] = [tex]\frac{x}{90}[/tex]
90 ÷ 5 = 18
So, if you multiply 18 by the number of the previous girls (5) you get 90
Therefore, you multiply 18 with the previous no. of boys (2) and that would be you equivalent answer!
2×18= 36
How do you find the perimeter and area of each figure
Answer:
Find the perimeter and area of each individual cube then add them up,
Area=length times width
Perimeter=4 times side
Step-by-step explanation:
Help please asap !!!
9514 1404 393
Answer:
v(t) = $342,000×1.06^tv(8) = $545,096v(15) = $819,623Step-by-step explanation:
When the growth (or decay) amount is a fraction or percentage of the current amount, an exponential model is indicated. Here, it will be of the form ...
value = (initial value) × (1 + (growth rate))^t
where t is the time period corresponding to the growth rate.
We are given that the initial value is $342,000 and the growth rate is 6% in a year. So, the model can be ...
value = 342,000×1.06^t . . . . . where t is years after 2017
__
In 2025, we are 8 years after 2017, so the value is predicted to be ...
value = $342,000×1.06^8 ≈ $545,096 . . . in 2025
__
In 2032, we are 15 years after 2017, so the value is predicted to be ...
value = $342,000×1.06^15 ≈ $819,623 . . . in 2032
Write the equation of a line in point-slope form whose slope is 7 and passes through the point (7, -2).
Answer:
Step-by-step explanation:
m=7
So by using point slope form
y-y1=m(x-x1)
y-(-2)=7(x-7)
y+2=7x-49
y-7x+51=0
Please help me and give me explanation and stop giving me links you virus people. Please help me out.
Answer: Fifth
Step-by-step explanation: Second week really had the most sales, but it was not an option. Fifth week had the second most sales, and it WAS an option.
Answer:
Fifth.
Step-by-step explanation:
Second would have been the answer BUT second isnt a option.
solve for the value of s
Answer:
s = 7 degrees
Step-by-step explanation:
All the angles have to add up to 180, so take 180 - 90 - 54 (the angles you know), and set them equal to 4s + 8. You get 36 = 4s + 8, subtract 8 from both sides, divide by 4, and you get that s = 7 degrees
Hopefully this helps! Let me know if you have any questions
What solid results when you rotate the shape
around the segment AB?
Answer:
C) an open top cone
Step-by-step explanation:
Find the surface area of the square pyramid. A) 80 in2 B) 105 in2 C) 160 in2 D) 210 in2
Answer:
The answer is C) 160 in2
Step-by-step explanation
Easy!
5x5=25
8x5=40x4=160
The surface area of the square pyramid is, A. 80 in².
What is a pyramid?A three-dimensional figure is a pyramid. Its base is a flat polygon. The remaining faces are all triangles and are referred to as lateral faces.
The number of sides on its base is equal to the number of lateral faces. The line segments that two faces intersect to form its edges. The intersection of three or more edges forms a vertex.
The given figure is a pyramid having a square base.
The pyramid also has four triangular faces, each having a base of 5 in and a height of 8 in.
Therefore, the surface area of the pyramid is,
= 4[(1/2)×5×8] square inches.
= 80 in².
learn more about pyramids here :
https://brainly.com/question/17615619
#SPJ3
Lauren wants to gift wrap a box which is in the shape of a cube. The dimensions of the cube is 25 cm. Determine the surface area of the box to knov
how much wrapping paper should be purchased.
Answer:
3,750cm²
Step-by-step explanation:
Total surface area of a cube is expressed as;
A = 6L²
L is the side length of the cube;
Given
L = 25cm
TSA = 6 (25)²
TSA = 6 * 625
TSA = 3,750cm²
Hence the total surface area of the box is 3,750cm²
state the gradients and the y intercepts of y=2x+6
Answer:
y-intercept: Put x = 0 in the equation y = 2x - 6 and solve for x. The y-intercept is -6.
PLEASE HELP!!!!
Marvin is a builder. A client gave Marvin this diagram of the dimensions of the triangular shelves that he would like Marvin to
build for his daughter's room.
Unfortunately, the client only sent him one of the angle measurements needed.
Which equation could be used to find the value of 2?
A. 180 - [180-2(70)] = x
B. 180 - 2(18) = x
C. 180 - 70 = x
D. 180 - 2(70) = x