Answer:
3612
Step-by-step explanation:
multiple. means 3 1 ja so
Find the probability of at least one
failure in five trials of a binomial
experiment in which the probability of
success is 30%.
Round to the nearest tenth of a
percent.
Answer:
99.8% probability of at least one failure.
Step-by-step explanation:
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.
Probability of success is 30%.
This means that [tex]p = 0.3[/tex]
Five trials:
This means that [tex]n = 5[/tex]
Find the probability of at least one failure in five trials of a binomial experiment in which the probability of success is 30%.
Less than five sucesses, which is:
[tex]P(X < 5) = 1 - P(X = 5)[/tex]
In which
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 5) = C_{5,5}.(0.3)^{5}.(0.7)^{0} = 0.002[/tex]
[tex]P(X < 5) = 1 - P(X = 5) = 1 - 0.002 = 0.998[/tex]
0.998*100% = 99.8%
99.8% probability of at least one failure.
Question 35 of 40
A conservation biologist is observing a population of antelope affected by an
unknown virus. Initially there were 120 individuals but the population is now
decreasing by 6% per month. Which function models the number of antelope,
a, after n months?
A. 2 - 120(0.6)"
B. - 120(0.94)"
C. - - 120(0.4)"
D. - 12000.06)
Answer:
120(0.96)^n
Step-by-step explanation:
6% = 0.06
1 - 0.06 = 0.94
p = 120(0.96)^n
I upped the steaks plz answer this, I will give brainiest
Answer:
[tex] \displaystyle x = \frac{3}{4} [/tex]
Step-by-step explanation:
we are given that
[tex] \displaystyle P = \left(x, - \frac{ \sqrt{7} }{4} \right)[/tex]
we want to figure out x
remember that,
In unit circle x coordinate is considered cos and y coordinate is considered sin
so in order to figure out x we should figure out the value of cos to do we can consider Pythagoras trig indentity
given by
[tex] \displaystyle \sin ^{2} ( \theta) + { \cos}^{2} ( \theta) = 1[/tex]
we are given sin=-√7/4 thus
substitute:
[tex] \displaystyle \left( - \frac{ \sqrt{7} }{4} \right) ^{2} + { \cos}^{2} ( \theta) = 1[/tex]
simplify square:
[tex] \displaystyle \frac{7}{16} + \cos ^{2} ( \theta) = 1[/tex]
move left hand side expression to right hand side and change its sign:
[tex] \displaystyle \cos ^{2} ( \theta) = 1 - \frac{7}{16} [/tex]
simplify Substraction:
[tex] \displaystyle \cos ^{2} ( \theta) = \frac{9}{16} [/tex]
square root both sides:
[tex] \displaystyle \cos ^{} ( \theta) = \pm\frac{3}{4} [/tex]
since in unit circle cos is x and P belongs to Q:IV negative cos isn't applicable
hence,
[tex] \displaystyle x = \frac{3}{4}[/tex]
transformati in unitati principale de masura pentru:
lungime
What is the value of the expression 6a + b3 if a = 3 and b = 2?
a) 24
b) 26
c) 69
d) 71
Answer:
6a + b^3 while a = 3 and b = 2 (i'm assuming it meant b^3 but let me know if it was supposed to be something else)
6(3) + (2)^3
18 + 8
26
Find myz in the picture below (Geometry)
Answer:
x = 12
arcYZ = 108degrees
Step-by-step explanation:
In geometery, angle in the same segment of a circle are equal. Hence;
m<A = ,<X
4x+6 = 5x - 6
4x - 5x = -6 - 6
-x = -12
x = 12
<A = 4x + 6
<A = 4(12) + 6
<A = 48 + 6
<A = 54 degrees
Since <A = 1/2 arcYZ
54 = 1/2 * arcYZ
arc YZ = 54 * 2
arcYZ = 108degrees
ben is tiling the floor in his bathroom. the area he is tiling is 4m x 2m. each tile is 400m x 400 mm. he has 45 tiles. is this enough
A small computing center has found that the number of jobs submitted per day to its computers has a distribution that is approximately mound-shaped and symmetric, with a mean of 78 jobs and a standard deviation of 6. Where do we expect approximately 95% of the distribution to fall? between 90 and 96 jobs per day between 72 and 84 jobs per day between 60 and 96 jobs per day between 66 and 90 jobs per day
Answer:
The answer is "between 60 and 96 jobs per day".
Step-by-step explanation:
In this solution, there is a mound-sized and symmetrical distribution for the number of works submitted to your computer per day with mean=78, and standard deviation=6.
Therefore a distribution of 95% decreases between the average [tex]\pm[/tex] 3* standard deviation
Therefore,
[tex]\to 78\pm (3*6)=(78-18, 78+18)=(60,96)[/tex]
The 95% distribution falls in between 60 and 96 jobs per day.
How many layers of 15 unit cubes are in the rectangular prism? Enter the answer in the box.
Answer:
8
Step-by-step explanation:
120/15
7.5
6. The desks at Ryder Middle School are shaped
like a rectangle with an area of 2x2 – 3x - 2
square inches. The length of the desk is 2x + 1
inches. Write an expression to represent the
width of the desk. (Hint: A = (w)
Answer: I have the same question, have you gotten the answer yet?
Step-by-step explanation:
What is the solution to the equation 3/
x+4+3/2x+8 = 0?
Answer:
X= -4
Step-by-step explanation:
^ you have to isolate the radical than raise each side to the power of its index which gets you
x= -4
Give the value of each trigonometric ratio
Answer:
Cos(M)=35/37
Cos(N)=12/37
Sin(M)=12/37
Sin(N)=35/37
Tan(M)=12/35
Tan(N)=35/12
Calculate the slope of the line passing through the given points. If the slope is undefined, so state. Then indicate whether the line rises, falls, is horizontal, or is vertical.
(4, 8), (7, 3)
Answer:
the line falls
Step-by-step explanation:
In a certain Algebra 2 class of 30 students, 14 of them play basketball and 10 of them play baseball. There are 14 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?
Help a man out
Does the figure have rotational symmetry? If it does, find the angle of rotation.
100 points will mark brainliest
A randomized study compared two drugs that are designed to lower a person's triglyceride level. It was found that over a 1-year period, those receiving Drug A decreased their triglyceride level by a mean of 69. Those receiving Drug B decreased their triglyceride level by a mean of 45.
To determine whether the results are significant, the data are rerandomized and the difference of the means is shown in the dot plot.
What is the best conclusion to make based on the data?
a. The difference of the means is significant because the rerandomizations show that it is within the range of what likely happens by chance.
b. The difference of the means is not significant because the rerandomizations show that it is within the range of what likely happens by chance.
c. The difference of the means is not significant because the rerandomizations show that it is outside the range of what likely happens by chance.
d. The difference of the means is significant because the rerandomizations show that it is outside the range of what likely happens by chance.
Answer:
a
Step-by-step explanation:
The difference of the means is significant because the rerandomizations show that it is within the range of what likely happens by chance.
Option (A) difference of the means is significant because the rerandomizations show that it is within the range of what likely happens by chance is the correct option.
What is a dot plot?"A dot plot is used to represent any data in the form of dots or small circles. It is similar to a simplified histogram or a bar graph as the height of the bar formed with dots represents the numerical value of each variable. Dot plots are used to represent small amounts of data".
For the given situation,
A randomized study shows the comparison of two drugs that are designed to lower a person's triglyceride level.
Drug A decreased their triglyceride level by a mean of 69.
Drug B decreased their triglyceride level by a mean of 45.
Mean difference = [tex]69-45[/tex]
⇒ Mean difference = [tex]24[/tex]
The data are rerandomized and the difference in the means is shown in the dot plot.
In the dot plot, the difference in the means is rerandomized and is arranged between the range 6 to 22.
Hence we can conclude that option (A) difference of the means is significant because the rerandomizations show that it is within the range of what likely happens by chance is the correct option.
Learn more about the dot plot here
https://brainly.com/question/23498615
#SPJ2
uestion
Convert: a. 350 hL to liters and b. 4.1 to.centiliters.
Answer:
35000 Litre
Step-by-step explanation:
Recall:
1 hectoliter = 100 liter
Hence,
350 hectoliter = (100 * 350) = 35000 Litre
Question B. Isn't clearly stated
Please somebody help me out!!
Answer:
See below.
Step-by-step explanation:
These work just like ordinary algebraic expresssions, except you have to remember always: i^2 = -1 i squared is negative one!
(4 - 3i)(4 + 3i) "FOIL" the expression to get 16 - 3i + 3i - 9i^2. But i^2 = -1, so this is the same as 16 - 3i + 3i + 9. Combine like terms.
Ans. 25
(4 - 3i)(i) Distribute the i to the two terms of the binomial.
4i - 3i^2 = 4i - 3(-1)
Ans. 4i + 3
(6i)(4 + 3i) = (6i)(4) + (6i)(3i) = 24i + 18i^2 = 24i + 18(-1)
Ans. 24i -18
(6i)(i) = 6i^2 = 6(-1)
Ans. -6
(-5)(4 + 3i) = -20 - 15i That's it; there's no i^2 to deal with.
Ans. -20 - 15i
(-5)(i) = -5i Again, that's all there is to it.
Ans. -5i
A public school in your city has 1710 girls among the 2970 students. What is the ratio of boys to girls in school
Answer:
The simplest answer would just be 14:19
However the unsimplified answer is 1260:1710
Pls help!!!
Use the volume formula to find the volume of the prism
A. 30 cubic units
B. 12 cubic units
C. 60 cubic units
D. 15 cubic units
Answer:
A. 30 cubic units
Step-by-step explanation:
First, you must multiply the two fractions together to get a decimal number. so, 1 1/2x 2 1/2= 3.75
Then, You multiply your answer with your current whole number, 8.
3.75 x 8 = 30.
Answer:
30 cubic units
Step-by-step explanation:
To find the volume, you need to use the following formula.
[tex]V= Bh[/tex]
The base is the product of the length and width ( [tex]1\frac{1}{2}[/tex] × [tex]8[/tex] ). Now that we have all of the data we need, we can plug it all in.
[tex]V = 12[/tex] × [tex]2\frac{1}{2}[/tex]
After multiplying, you'll find that the total of the volume is 30. Sorry for taking so long, just hoped this helped ^-^
The figure below is made of 2 rectangles.
Answer:
i dont see the question?
Step-by-step explanation:
Can someone check those and tell what is wrong and the answer
Answer:
42. acute
43. obtuse
Step-by-step explanation:
Obtuse: which one of the interior angles measures more than 90° degrees, then the rest are less than ninety.
Acute: all less than ninety and all different.
Miley walks dogs to earn money. She tracks her steps while she walks the dogs so she can walk them all an equal distance. Last week, she walked 11 11 dogs. Her total distance was 4 , 532 4,532 yards. How far did she walk each dog?
Answer:
412 yards each
Step-by-step explanation:
4,532/11=412
XYZ Corporation operates two plants, each of which has a capacity of 100 units per day. Each day, XYZ must ship their product to each of four customers. Customers A, B, and C each have a demand of 20 units per day while customer D has a demand of 140 units per day. The cost of shipping one unit of each product from each of the two plants to each of the customers is shown in the table below. Customer A Customer B Customer C Customer D Plant 1 24 21 19 18 Plant 2 18 16 19 10 How many units should XYZ ship from each plant to each customer? (Leave no cells blank—be certain to enter "0" wherever required. Round your answer to the nearest whole number.) What is the least XYZ will spend on shipping each day? (Round your answers to 2 decimal places.) rev: 07_30_2020_QC_CS
9514 1404 393
Answer:
{20, 20, 20, 40} units to {A, B, C, D}{0, 0, 0, 100}minimum shipping cost: 3000
Step-by-step explanation:
In general, shipping costs more from Plant 1. The excess costs to ship to customers A, B, C, D are, respectively, (24-18) = 6, (21-16) = 5, (19-19) = 0, (18-10) = 8.
The greatest excess cost is for shipping to customer D from plant 1, so we want to ship as many units as possible to customer D from plant 2.
Shipments from Plant 2 to Customers {A, B, C, D} = {0, 0, 0, 100}.
Then the remaining shipments are fulfilled from Plant 1.
Shipments from Plant 1 to Customers {A, B, C, D} = {20, 20, 20, 40}.
The amount spent on shipping each day is ...
100×10 +20×24 +20×21 +20×19 +40×18
= 20×(50 +24 +21 +19 +36) = 3000 . . . . daily shipping cost
-11 2/3 x (-4 1/5) =
Answer:
49 is your answer :)
Step-by-step explanation:
Have a nice dayyy <3
If the measure of ZCOA is 65°, what is the measure of AOD?
A
Answer: 115
Step-by-step explanation:
<COD = 180°
<AOD = 180 - 65 = 115
57 athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be given to the second place finisher, and a bronze medal is to be given to the third place finisher. Assume there are no ties. How many ways can the three metals be distributed?
Hello~
Okay so lets try dividing.
57 divided by 3?
Well that's equal to 19!
So it can be distributed into 19 ways. (people)
Ary~
A lottery game has balls numbered 1 through 15. What is the probability of selecting an even numbered ball or a 13?
Answer:
8 / 15
Step-by-step explanation:
Sample space = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
Required outcome :
Even numbers = (2, 4, 6, 8, 10, 12, 14) or 13
Total required outcomes = 8
Probability = required outcome / Total possible outcomes
P(even number or 13) = 8 / 15
I need help question attached. 20 point!
Answer:
[tex]45\:\mathrm{in}[/tex]
Step-by-step explanation:
The volume of a square pyramid is given by [tex]V=\frac{1}{3}\cdot s^2\cdot h[/tex]. Substituting given values, we have:
[tex]3,840=\frac{1}{3}\cdot 16^2\cdot h,\\h=\frac{3,840\cdot 3}{256}=\boxed{45}[/tex]
Answer:
30 in.
Step-by-step explanation:
[tex]h=3\frac{V}{a^{2} }[/tex]
[tex]h=3\frac{3840}{16^{2} }[/tex]
45.12
That is not an option, so go with the closest one 30 in.
At a festival you run across a booth with an interesting game. Tokens are sold for $2 with a selection of prizes. There is a $25 grand prize which you have a 5% chance of winning, there are 5 mid-level prizes, each worth $15 with a 15% chance of winning, and there is a consolation prize worth $1 with a 20% chance of winning. What is your expected gain or loss if you play this game
Answer:
Your expected gain is of $10.7.
Step-by-step explanation:
Expected earnings:
The expected earnings is each prize multiplied by it's probability of being earned.
So
5% probability of earning $25.
5*15% = 75% probability of earning $15.
20% probability of earning $1. So
0.05*25 + 0.75*15 + 0.2*1 = 12.7
Cost of token:
The token costs $2, which means that we subtract $2 from the expected earnings.
12.7 - 2 = 10.7
Your expected gain is of $10.7.