Answers
Answer:
(d) is true
Explanation:
Given
[tex]Brown = 8[/tex]
[tex]Purple = 7[/tex]
Required
Which of the options is true
A) P(Brown) = P(Not Brown)
P(Brown) is calculated as:
[tex]P(Brown)=\frac{Brown}{Brown + Purple}[/tex]
[tex]P(Brown)=\frac{8}{8+7}[/tex]
[tex]P(Brown)=\frac{8}{15}[/tex]
P(Not Brown) is calculated as:
[tex]P(Not\ Brown) = 1 - P(Brown)[/tex] --- Complement rule
[tex]P(Not\ Brown) = 1 - \frac{8}{15}[/tex]
Solve
[tex]P(Not\ Brown) = \frac{7}{15}[/tex]
Both are not equal.
Hence, (a) is not true
(b) P(Brown) < P(Not Brown)
In (a) above
[tex]P(Brown)=\frac{8}{15}[/tex]
[tex]P(Not\ Brown) = \frac{7}{15}[/tex]
By comparison;
[tex]P(Brown) > P(Not\ Brown)[/tex]
Because:
[tex]8/15 > 7/15[/tex]
Hence, (b) is not true
(c) P(Not Brown) > P(Brown)
This is the same as (b)
i.e. both conditions represent the same.
Hence, (c) is incorrect
(d) P(Brown) > P(Not Brown)
In (b), we established that
[tex]P(Brown) > P(Not\ Brown)[/tex]
Because:
[tex]P(Brown)=\frac{8}{15}[/tex]
[tex]P(Not\ Brown) = \frac{7}{15}[/tex]
[tex]8/15 > 7/15[/tex]
Hence, (d) is true
Related Questions
Please help I'll give brainliest
Answers
Answer:
angle A = 130°
x=65°
I hope it's helps you
Answer:
(2x - 30°) + 50° = 180° (linear pair angles)
2x + 20° = 180°
2x = 180° - 20°
2x = 160°
x = 160°/2 = 80°
Now, A = 2x - 30° = 160°-30° = 130°
Violet is taking a computer-adaptive test, where each time she answers a question
correctly, the computer gives her a more difficult question. Let Q be the number of
questions Violet answers correctly before she misses one.
What type of variable is Q?
Algebraic
None of them.
Geometric
Binomial
Answers
Answer: Neither
Step-by-step explanation:
will mark brainliest help please
Answers
An aircraft flies at an average speed of 600 miles per hour. The expression 600t gives the distance traveled by the aircraft in t hours. Find the distance traveled by the aircraft in 6 hours. The distance traveled by the aircraft in 5 hours is:
Answers
Answer:
So, we know that the speed of the aircraft is 600 miles /per hour/. The question is, how many miles does it travel over 6 hours?
Since “per hour” means it travels that far in 1 hour, we need to take that speed (600mph) and multiply it by 6, since we were asked about the distance in 6 hours.
So:
600*6=3600
And we get a total of 3600 miles traveled in 6 hours, as opposed to 600 miles in 1 hour.
600 * 6 = 3600
I need a answer ASAP
Answers
Not sure tho
Explanation
The question is attached in the photo PLEASE HELP ASAP!!!!!!
THIS IS DUE TODAY!!!!!!!!!!!!
*** I will make you brainiest if the answer is correct ***
Answers
Answer:
$420
Step-by-step explanation:
In the figure, the living room is 5 cm by 3.5 cm.
We use the scale to convert to the real measurements.
1 cm = 4 ft
5 cm * 4 ft/cm = 20 ft
3.5 cm * 4 ft/cm = 14 ft
The actual dimensions of the room are 20 ft by 14 ft.
actual area = 20 ft * 14 ft = 280 ft²
carpet cost = $1.50/ft²
cost of carpet = 280 ft² * $1.50/ft²
cost of carpet = $420
Answer: $420
Find the area of a circle that has a diameter of 11 inches. Approximate ar as 3.14. Round your answer to the
nearest hundredth.
A
in 2
in
Answers
Answer:
94.99
Step-by-step explanation:
Hi,
The formula to find the area of a circle is: A = πr²
So...
A = 3.14 (r)²
The radius of the circle is 5.5 because half of the diameter is the radius.
A = 3.14 (5.5)²
A = 3.14 (30.25)
A = 94.985 rounded is 94.99
I hope this helps :)
Find the slope of the line passing through the points (2,-9) and )1,-3)
Answers
Answer:
5
Step-by-step explanation:
Slope = (-3 - 2) / (1 - 2) = -5 / -1 = 5
Hi there!
[tex]\large\boxed{\text{slope =} 6}[/tex]
We can calculate slope using the following formula:
[tex]slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
Plug in the corresponding points:
[tex]slope = \frac{-9-(-3)}{2-1}[/tex]
Simplify:
[tex]slope = \frac{-6}{1} = -6[/tex]
What is the quotient of -3/8 and -1/3
Answers
Answer:
(-3/8)/(-1/3)
=(-3/8) x (-3)
=9/8
=11/8
Step-by-step explanation:
Use the graph. How does the diagram show that the slope between any two points on a line is the same? A. It does not show this because the triangles are not the same size. B. The triangles have the same vertical heights and horizontal lengths. C. The distance between A and B is the same as the distance between B and C. D. The triangles are similar so the ratios of their vertical heights to their horizontal lengths are equivalent.
Answers
Answer:
the answer is D The triangles are similar so the ratios of their vertical heights to their horizontal lengths are equivalent.
Step-by-step explanation:
The triangles are similar so the ratios of their vertical heights to their horizontal lengths are equivalent. Therefore, option D is the correct answer.
What is slope of a line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
We know that, slope = Rise/Run.
Here, slope of a line AB = 3/6
= 1/2
Now, slope of a line BC = 2/4
= 1/2
Therefore, option D is the correct answer.
To learn more about the slope of a line visit:
https://brainly.com/question/14511992.
#SPJ3
find the measure of angle A
Answers
Answer:
-7
Step-by-step explanation:
The sum of all angles in a triangle will be equal to 180. So we add x+46+x+71+77=180* 2x+194=180 2x= -14 x=-7Dilate the figure by the scale factor. Then enter the new coordinates. K=2
A([]),([])
B([]),([])
C([]),([])
(-3,2),(1,1)(-1,-1)
Answers
Answer:
A = (-6, 4)
B = (2,2)
C = (-2, 2)
Step-by-step explanation:
If a coordinate (x, y) is dilated by a factor of k, the resulting coordinate will be expressed as (kx, ky). Note that each coordinate is multiplied by the scale factor
Given the coordinates (-3,2),(1,1)(-1,-1), if they are dilated by a factor of 2, the resulting coordinate will be;
A = (2(-3), 2(2)) = (-6, 4)
B = (2(1),2(1)) =(2,2)
C = (2(-1), 2(-1)) = (-2, 2)
Why is 6P4 = 360 but 6C4 = 15?
Answers
Short answer (I write nPr = P(n, r) and nCr = C(n, r) ):
P (6, 4) = 6! / (6 - 4)! = 6! / 2! = 720 / 2 = 360
C (6, 4) = P (6, 4) / 4! = 6! / (4! (6 - 4)!) = 360 / 24 = 15
Long answer:
P(n, r) counts the number of permutations of n objects taken r at a time, given by
P(n, r) = n ! / (n - r )!
A permutation is a unique arrangement of objects such that the order in which they are arranged is taken into account. For example, if the objects in question are the numbers in the set {1, 2, 3}, then
• there are 3! = 6 total possible permutations if we take all 3 numbers at once:
123, 132, 213, 231, 312, 321
• there are 3!/(3-2)! = 3!/1! = 6 total permutations if we only take 2 numbers at once:
12, 13, 21, 23, 31, 32
• there are 3!/(3-1)! = 3!/2! = 3 total permutations if we take only 1 number at a time:
1, 2, 3
• and there is 3!/(3-0)! = 3!/3! = 1 way of permuting the 3 numbers without taking any of them:
(the permutation itself is just empty space)
By contrast, C(n, r) counts the combinations of n items taken r at a time, given by
C(n, r) = P(n, r) / r !
A combination is like a permutation, but the order of the objects doesn't matter. Continuing with the previous example of arrangements of the numbers from {1, 2, 3}, we have
• 3! / (3! (3-3)!) = 1 combination taking all 3 numbers at once:
123
(the other 5 permutations listed earlier are made up of the same numbers, so we consider them duplicates)
• 3! / (2! (3-2)!) = 3 combinations taking only 2 numbers at once:
12, 13, 23
• 3! / (1! (3-1)!) = 3 combinations taking only 1 number:
1, 2, 3
• 3! / (0! (3-0)!) = 1 combination taking none of them:
(again, empty space)
The main point is that the order of objects is considered across permutations, while it's ignored across combinations.
What is the main problem with this conclusion paragraph
Thesis statement: Stores that resell used video games should offer at least 30 percent of the sale price to sellers.
Main points:
More people will sell used games.
More people will buy new games.
The store will make money.
Conclusion: It just makes sense that happy sellers will sell back more used games They'll also be willing to buy more new games, knowing they can sell them back for a good price. This will all lead to more profit for the store. It is a problem that has a simple solution that will benefit everyone involved.
A. It does not restate the thesis.
B. It does not have a satisfying close.
C. It adds new information.
D. It is missing one of the main points.
Answers
Answer:
It does not restate the thesis.
1.) Which expression is equivalent to 2.3 X 2.3 X 2.3? *
O A.) 2.3X5
B.) 2.39
O C.) 22 X30
O D.) 2.31
Answers
Answer:
O A).
Step-by-step explanation:
Graph the function.
f (x) = sin (
Use the Sine tool. First plot a point on the midline of the function. Then plot either the maximum or
minimum point closest to the first point plotted.
Answers
Step-by-step explanation:
shown in the photo I have provided
The graph of the given function f (x) = sin (πx/2) is attached below.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
If we plugged in x = 0, then we get
f (x) = sin (πx/2)
Therefore, this sine curve goes through the origin. The point is on the midline y = 0, the x axis.
We need either a minimum or maximum point. the expression f (x) is the same as . We will divide 2π over the coefficient of π/2 to get
The plot of the the maximum or minimum point closest to the first point is plotted in the graph.
Learn more about function here:
https://brainly.com/question/2253924
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We measure the diameters for a random sample of 25 oak trees in a neighbourhood. Diameters of oak trees in the neighbourhood follow a normal distribution with standard deviation 8.25 cm. A confidence interval for the true mean diameter of all oak trees in the neighbourhood is calculated to be (36.191, 42.969). What is the confidence level of this interval
Answers
Answer:
The required confidence inteval = 94.9%.
Step-by-step explanation:
Confidence interval: Mean ± Margin of error
Given: A confidence interval for the true mean diameter of all oak trees in the neighbourhood is calculated to be (36.191, 42.969).
i.e. Mean + Margin of error = 42.969 (i)
Mean - Margin of error = 36.191 (ii)
Adding (i) and (ii), we get
[tex]2Mean =79.16\\\\\Rightarrow\ Mean= 39.58[/tex]
Margin of error = 42.969-39.58 [from (i)]
= 3.389
Margin of error = [tex]t^* \dfrac{\sigma}{\sqrt{n}}[/tex]
here n= 25 [tex], \ \sigma=8.25[/tex]
i.e.
[tex]3.389=t^*\dfrac{8.25}{5}\\\\\Rightarrow\ t^* = \dfrac{3.389}{1.65}\\\\\Rightarrow\ t^* =2.0539 \[/tex]
Using excel function 1-TDIST.2T(2.054,24)
The required confidence inteval = 94.9%.
This is due before 11:59
Please help
Answers
Answer:
r = 1Explanation:
7 - 1 = 6
2/3 = 4/6
so
5 - r = 4
r = 5 - 4
r = 1
(1, 1) (7, 5)
Is this answer correct? If it is incorrect, let me know.
Answers
Answer:
you are incorrect =
Step-by-step explanation:
1 mile = 63360inches=72 =63432inches=5286ft
Mr.haynes pays 136.78 for cable and internet each month .How much does mr.hayes pays for cable and internet over a period of a year.
Answers
Select the correct answer.
29 points!! Kathy distributes jelly beans among her friends. Alia gets 42 fewer jelly beans than Kelly, who gets 33 jelly beans. How many jelly beans does Alia get?
A. 4^2 - 3^3
B. 3^3 + 4^2
C. 4 - 3^3
D. 3^3 - 4^2
E. 3^2 - 4^3
Answers
Answer:
Alia has 11 jelly beans.
Step-by-step explanation:
4^2= 163^3= 2727-16=11
Need help with these 2 math problems please !
Answers
Answer:
A,b I’m pretty sure
Step-by-step explanation:
what is the value of x?
Answers
Answer:
33
Step-by-step explanation:
if you set it as an equation equal to 180 its easier to tackle
Which of the following is true regarding the Central Limit Theorem (CLT)?
• A. If your sample size is n = 30 exactly, then you are guaranteed to have an approximately normal sampling distribution of the sample mean.
• B. As the sample size n increases, the data distribution should become approximately normal.
• C. The Central Limit Theorem states that the sampling distribution of the sample mean should always have the same shape as the population distribution.
D. none of the above
Answers
Answer:
im sure its c
Step-by-step explanation:
:)
What integer should be added to -9 to get a sum of 0?
Answers
Answer:
(-9) + 9 = 0
The integer that should be added is nine
Step-by-step explanation:
when you have a negative integer and you added it by itself but it's a positive instead of a negative the positive takes over the negatives and makes it zero. I hope that made sense
The point (–4, –2) is reflected across the x-axis.
Answers
Answer:
there is no picture so we can't solve it
HELP ME PLEASE 20 POINTS PLEASE
Consider the box plot below.
Which of the following statements is true?
A.
The center of the distribution is 8.
B.
The distribution is symmetric.
C.
The distribution is skewed to the left.
D.
The distribution is skewed to the right.
Answers
Answer:
i think D is the answer : the distribution is skewed to the right
Answer:
I support option D in this question
helpp mee plss i’ll give brainliest
Answers
Answer:
1\9
Step-by-step explanation:
probability of picking 6 once is 1/3
then picking 6 again would be 1/9
solve for x ill give brainlest!!!
Answers
Answer:
[tex]x=-9[/tex]
Step-by-step explanation:
[tex]36^{x-3}=1296^{x+3}\\(6^2)^{x-3}=(6^4)^{x+3}\\2(x-3)=4(x+3)\\x-3=2x+6\\x+6=-3\\x=-9[/tex]
Write the equation of the following circle in general form and standard form. Show your work.
Answers
Answer:
Step-by-step explanation:
Standard equation of a circle is given by,
(x - h)² + (y - k)² = r²
Here, (h, k) is the center of the circle.
From the graph given in the picture,
Center of the circle → (-1, 1)
Radius of the circle = 3 units
Therefore, standard equation of the circle will be,
(x + 1)² + (y - 1)² = 3²
(x + 1)² + (y - 1)² = 9
General equation of the circle is the expanded form of the standard equation.
x² + 2x + 1 + y² + 1 - 2y = 9
x² + y² + 2x - 2y + 2 = 9
x² + y² + 2x - 2y - 7 = 0
Therefore, general equation of the given circle is,
x² + y² + 2x - 2y - 7 = 0