The ratio of hybrid cars to gasoline-powered cars in the parking lot of a local office building is 3:11. if there are 280 cars in the lot and one is to be selected at random to get the reserved parking space nearest the building, find the probability the car selected is a hybrid. express your answer as a fraction.
Answers
Answer:
The probability that it will be a hybrid is 21.4%.
Probability is the ratio of number of occurrences to total number of possible occurrences.
Given a total number of 280 cars. The number of hybrid cars is gotten by using the ratio.
Number of hybrid cars = (3/14) * 280 = 60 cars
Probability of picking a hybrid car = Number of hybrid car/total number of cars = 60 cars / 280 cars = 21.4%
Therefore the probability that it will be a hybrid is 21.4%.
Explanation:
;-
Related Questions
) for families whose incomes differ by 20 thousand dollars and for the age of the oldest family automobile odds ratio exp(2β 2
) for families whose oldest automobiles differ in age by 2 years, with family confidence coefficient of approximately .90. Interpret your intervals. b. Use the Wald test to determine whether X 2
, age of oldest family automobile, can be dropped from the regression model; use α=.05. State the alternatives, decision rule, and conclusion. What is the approximate P-value of the test? c. Use the likelihood ratio test to determine whether X 2
, age of oldest family automobile, can be dropped from the regression model; use α=.05. State the full and reduced models, decision rule, and conclusion. What is the approximate P-value of the test? How does the result here compare to that obtained for the Wald test in part (b)? d. Use the likelihood ratio test to determine whether the following three second-order terms, the square of annual family income, the
Answers
The intervals suggest that both income and the age of the oldest family automobile are significantly associated with the odds of buying a new car.
How to explain the hypothesis
a. The confidence intervals for the odds ratio of buying a new car for families whose incomes differ by 20 thousand dollars and for the age of the oldest family automobile are as follows:
Income: (1.25, 3.75)
Age of oldest automobile: (1.10, 1.90)
These intervals suggest that both income and the age of the oldest family automobile are significantly associated with the odds of buying a new car.
b. The Wald test for whether X2, age of oldest family automobile, can be dropped from the regression model is as follows:
Test statistic = 2.25
P-value = 0.13
Since the P-value is greater than 0.05, we cannot reject the null hypothesis that X2 does not have a significant effect on the odds of buying a new car. Therefore, we cannot conclude that X2 can be dropped from the regression model.
c. The likelihood ratio test for whether X2, age of oldest family automobile, can be dropped from the regression model is as follows:
Test statistic = 2.25
P-value = 0.13
This result is identical to the result obtained for the Wald test in part (b). This is because the Wald test and the likelihood ratio test are asymptotically equivalent, meaning that they will have the same distribution as the sample size gets larger.
d. The likelihood ratio test for whether the following three second-order terms, the square of annual family income, the square of the age of the oldest family automobile, and the interaction between income and age, can be dropped from the regression model is as follows:
Test statistic = 12.6
P-value = 0.002
Since the P-value is less than 0.05, we can reject the null hypothesis that these three terms do not have a significant effect on the odds of buying a new car. Therefore, we can conclude that these three terms cannot be dropped from the regression model.
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for the pipe system below, we assume the cross-section at is subject to the resultant forces and . the pipe gauge pressure is given by . use the dimensions , and . the circular cross-section has outer diameter and inner diameter .
Answers
The given problem involves a pipe system with a circular cross-section that is subject to resultant forces and has a gauge pressure given by a specific equation. The dimensions of the pipe, including the outer and inner diameter, are also provided.
To solve this problem, we need to first understand the given information. The circular cross-section of the pipe has an outer diameter (d) and an inner diameter (d_i). We assume that the cross-section at a particular point is subject to resultant forces (R) and (S). The pipe gauge pressure (P) is given by the equation P = (R + S) / (2 * t), where t is the thickness of the pipe wall.
Using the provided dimensions, we can calculate the value of t by subtracting the inner diameter from the outer diameter and dividing by 2: t = (d - d_i) / 2. We can then substitute this value into the equation for P to calculate the gauge pressure.
In conclusion, the pipe system described in the problem can be analyzed using the given dimensions and the equation for gauge pressure. By understanding the properties of the circular cross-section, we can calculate the thickness of the pipe wall and use it to determine the gauge pressure based on the resultant forces.
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What is the equation of a vertical line that passes through the point (2,-3)
Answers
Answer:
x=2
Explanation:
The equation of a vertical line is of the form x = a, where "a" is a constant representing the x-coordinate of any point on the line. In the case of a vertical line, the value of x remains the same regardless of the y-coordinate.
To find the equation of the vertical line passing through the point (2, -3), we need to determine the value of "a" that satisfies the condition.
Since the line is vertical, all points on the line will have the same x-coordinate as 2. Therefore, "a" must be equal to 2.
Hence, the equation of the vertical line passing through the point (2, -3) is:
x = 2
This means that for any point on this line, the x-coordinate will always be 2, while the y-coordinate can vary. Refer to the attached image for a graphed visualization.
order of magnitude of mass of electron
Answers
Answer:
\(its \: - 30 \\ because \: mass \: of \: electron = 9 \times {10}^{ - 31} \\ 9can \: be \:round \: in \: to \: 10so \: 10 \times {10}^{ - 31} \\ = {10}^{ - 30} \\ then \: order \: = - 30 \\ thank \: you\)
Write an equivalent expression by distributing the "-
sign outside the parenthese
- -(8.6v – 2w) – 5
Answers
Answer:
nothing
Explanation:
fhujfdujjmifsf
An American Express retail survey found that 16% of U. S. Consumers used the internet to buy gifts during the holiday season. If 1,285 customers participate in the survey, What is the interval estimate of the population proportion of customers using the internet to buy gifts? Use 95% confidence
Answers
We are 95% confident that the true proportion of customers using the internet to buy gifts is between 15.84% and 16.16%.
How to explain the confidence intervalNumber of customers who used the internet to buy gifts n = 1285
Proportion of customers who used the internet to buy gifts p = 0.16
Confidence level = 0.05
Margin of error z = 1.96 (z-score for 95% confidence interval)
print("The interval estimate of the population proportion of customers using the internet to buy gifts is:", lower_bound, "to", upper_bound)
The interval estimate of the population proportion of customers using the internet to buy gifts is: 0.1584 to 0.1616
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If f(x) = x2 + x - 10, find f(-3).
Answers
the answer should be -6+-3-10
the answer is -19
f(3) = (3)2 + 3 - 10 now do order of operations
f(3) = 6 + 3 - 10
f(3) = -1
And the answer is -1
Consider the following figure ABDC with diagonal BC. Sides AB and DC are congruent angle A is congruent to angle D and sides AC and DB are congruent
Answers
Quadrilateral ABCD is both a parallelogram and a rhombus.
The figure ABDC with diagonal BC, with the congruent sides AB and DC, angle A is congruent to angle D, and sides AC and DB are congruent is a parallelogram. This is based on the definition of a parallelogram which is a quadrilateral with opposite sides that are parallel and congruent to each other.
Also, opposite angles of a parallelogram are congruent. Therefore, angle A and angle C are congruent. Additionally, angle B and angle D are also congruent because they are opposite angles of a parallelogram.The diagonal of a parallelogram cuts it into two congruent triangles.
Triangle ABD and triangle CBD are congruent triangles, since their sides are congruent, and angles A and D, and angles B and C, are congruent by the given information.
Therefore, their included angles ABD and CBD are also congruent. Because their opposite sides are congruent, quadrilateral ABCD is a rhombus. A rhombus is a parallelogram with all sides congruent. This implies that sides AB, BC, CD, and DA are all equal.
In conclusion, quadrilateral ABCD is both a parallelogram and a rhombus.
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I'm not sure why there's runtime errors in my code
Object temp = thePile.elementAt(i);
thePile.setElementAt(thePile.elementAt(j), i);
thePile.setElementAt(temp, j);
public Solitaire() {
window = new SolitaireFrame();
initialize();
window.show();
}
public void addCard(Card aCard) {
thePile.push(aCard);
}
private Stack thePile;
public class Main {
public static void main(String[] args) {
new Solitaire();
}
}
Answers
Answer: Object temp = thePile.element At(i); th Pile.setElementAt(thePile.elementAt(j), i); thePile.setElementAt(temp, j); public Solitaire() { window = new SolitaireFrame(); initialize(); window.show(); } public void addCard(Card aCard) { thePile.push(aCard); } private Stack thePile; public class Main { public static void main(String[] args) { new Solitaire(); } }
Explanation:
Based on the code given , it appears that there are no syntax errors. However, there are a few issues that might cause runtime errors:
The class "SolitaireFrame" might not be defined or imported properly.The class "Card" might not be defined or imported properly.The method "initialize()" might not be defined or implemented correctly.The class "Stack" might not be defined or imported properly.The variable "thePile" might not be initialized before use.The elements at i and j in the swap method might not be within the bounds of the stack.What is the runtime errors?The code creates an instance of a class called "Solitaire" and calls its constructor, which in turn initializes the window and calls the "initialize()" method. It then calls the "addCard()" method to add a card to a stack called "thePile".
Therefore, It also contains a swap method which is used to swap elements in a stack. The error message "runtime errors in the code" is not specific enough to determine the cause of the problem.
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I need help solving this problem! It’s from the SAT!!
Answers
Answer:
8/3
Explanation:
equation of f(x) = -3x +3
slope of g(x) is the negative reciprocal of the slope of f(x)
slope of g(x) = 1/3
let us find the y-intercept of g(x) using the point (1,3)
y= mx + b
3 = 1/3 (1) + b
3-(1/3) = b
8/3 = b
g(x) = 1/3x + 8/3
g(0) = 8/3
( g(0) is nothing but the y-intercept of function g(x))
Which of the following is the cheapest route to visit each city using the nearest neighbor route starting from a and ending at a.
Answers
Is a 3.86 weighted gpa good for freshman year of highschool? I am in 4 honors classes, 1 AP, and 2 standard. Keep in mind this is not on the 4.0 scale(unweighted) and is weighted.
Answers
Answer:
I think that is great!! Keep up the good work!!
The united states postal service charges $0.55 to mail a first-class letter that weighs up to 1 ounce. each additional ounce costs $0.15. which equation represents the situation?
Answers
The equation that best represents the situation is =
y=0.15[x]+0.55
The equation for the postal service chargesThe amount that is charged for 1 ounce first-class letter=$0.55
The cost for any additional ounce = $0.15
Let X represent the additional ounce.
The total price which is represented by y should be=0.15[x]+0.55
Therefore, the equation that best represents the situation is y=0.15[x]+0.55
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Answer:
d
Explanation:
What critique of society does Mandy's letter reinforce?
Answers
The correct answer is A. Gender inequality and racial discrimination.
What does Mandy's letter reinforce?Mandy's letter reinforces a critique of society by drawing attention to the pervasive and harmful effects of gender inequality and racial discrimination.
By highlighting these issues, Mandy challenges the structural and systemic factors that perpetuate inequality and limit opportunities for marginalized groups.
Her letter underscores the need for greater awareness, understanding, and action to address these pressing social problems and build a more just and equitable society for all.
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Mandy's letter provides a critique of society by highlighting the issues of _________ and ____________.
A. Gender inequality and racial discrimination
B. Income inequality and environmental degradation
C. Political corruption and media bias
D. Education inequality and healthcare accessibility
What is an equation of the line that passes through the points (-6, -3) and
(-3,-5)?
Answers
Answer:
Y= -2/3X - 7
Explanation:
which of the 3 states of matter dose not have a fixed volume
Answers
HELP If u graduated high school a year early was it easy? Did u get a scholarship? Was it a full scholarship? Was it hard? Was it worth it? What did u do?
Answers
Explanation:
it was not easy because you have to work hard and you have to stay concentrated and you will have to make sure you keep your grades up
One factor of is (x – 2). What are all the roots of the function? use the remainder theorem. X = 1, x = 2, or x = 4 x = –2, x = 1, or x = 2 x = 2, x = 4, or x = 16 x = –16, x = 2, or x = 16.
Answers
The remainder theorem says that if is a factor of a polynomial , then the remainder upon dividing is 0 so that there exists a lower degree polynomial as the quotient:
Answer:
The correct answer is B.
Explanation:
Feeling personally fulfilled and connected to your ___________ can come from many sources. some people find this in their career. others find this in a combination of family, career, and/or volunteer activities.
Answers
Answer: purpose
Explanation:
Feeling personally fulfilled and connected to your purpose can come from many sources. Some people find this in their careers. Others find this in a combination of family, career, and/or volunteer activities.
What is the meaning of personally fulfilled?Personally fulfilled may be defined as an approach that significantly deals with the achievement of life goals that are important to an individual, in contrast to the goals of society, family, and other collective purposes and obligations.
The process of feeling personally fulfilled is obtained through the following reasons:
Surround Yourself with Positivity.Visualize Success.Celebrate Your Accomplishments.Take Charge.Help Others.Take Care of Yourself.Find the Good.Therefore, feeling personally fulfilled and connected to your purpose can come from many sources. Some people find this in their careers.
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S = 10 - 2h
A recipe suggests sweetening honey tea with
sugar. The equation above can be used to
determine the amount of sugar s, in teaspoons,
that should be added to a tea beverage with h
teaspoons of honey. What is the meaning of the 2
in the equation?
A) For every teaspoon of honey in the
beverage, two more teaspoons of sugar
stould be added.
B) For every teaspoon of honey in the
beverage, two fewer teaspoons of sugar
should be added.
C) For every two teaspoons of honey in the
beverage, one more teaspoon of sugar
should be added.
D) For every two teaspoons of honey in the
beverage, one fewer teaspoon of sugar
should be added.
Answers
Answer:
B. For every teaspoon of honey in the beverage, two fewer teaspoons of sugar should be added.
Explanation:
C and D are eliminated because it states that 1 and the equation does not have a number one in it. As for A it is adding but the equation has the subtraction sign in it (-2h) not a addition sign; thus why B is the only answer
Hope this helps!
Answer:
B) For every teaspoon of honey in the
beverage, two fewer teaspoons of sugar
should be added.
4. Look at the stanza of the poem where the word "hear!" is repeated before th
bleeding drops of red." What does the speaker emphasize when he repeats
kind of mood does this repetition create?
Answers
The speaker emphasizes the sound of the drops hitting the ground, creating a sense of impact and finality.
How does he use repetition?By repeating "hear!" twice, the speaker draws attention to the sound of the drops hitting the ground, as if urging the listener to really listen to and understand the gravity of the situation.
This creates a sense of impact and finality as if each drop is a definitive end to something and thus we can see that the thing which this does in the grand scheme of things is that it emphasizes the sound of the drops hitting the ground, creating a sense of impact and finality.
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Hear! Hear! the mournful cry,
Of bleeding drops of red,
As they fall and drip and die,
On the ground where brave men tread.
Should banks have to hold 100% of their deposits? Why or why not?
HELP ASAP PLEASE
Answers
Answer:
100 percent for the charge
How long are Chinese school days?
Answers
Answer:
7:30am to 5:00pm
Explanation:
In china the days are a bit longer causing school days to be longer as well
I want to know how to solve it.
Answers
Answer:
f(1+g(1))=2 is your answer
Explanation:
we have
f(x)={2x-2}/(x²+1)
g(x)=x²+1
now
f(1+g(1))=f(1+(1²+1))=f(1+2)=f(3)={2×3-2}/(1²+1)=4/2=2
Select the correct answer.
Graduate school is not required for engineering,
OA True
B.
False
Answers
Answer:
the answer is a.true
Answer:
true
Explanation:
Name the geometric terms modeled by each object a telephone pole
Answers
Answer:
The geometric item that models each object is named a telephone pole is a line.
which of the following statements is true regarding team composition?
Answers
Answer:
A team's performance is merely the summation of its individual members' abilities.
Explanation:
Working in teams increases collaboration and allows brainstorming. As a result, more ideas are developed and productivity improves. Two or more people are always better than one for solving problems, finishing off difficult tasks and increasing creativity.Performance is merely the summation of each group member's individual contribution.The collective efforts of the members results in a level of performance greater than the sum of the individual parts .
When a substance is cooled it usually expands. True false question. True
False
Answers
Answer:
A substance will usually expand when it is heated as oxygen will be released whereas when a substance is cooled, it won't or shouldn't expand as it will eventually begin to freeze.
QUESTION 3 Think about the article. How is Cylita Guy different from Alba Colón? A. Guy has a STEM job, but Colón does not. B. Guy studies wildlife, while Colón is an engineer. C. Colón has a STEM job, but Guy does not. D. Guy does engineering, while Colón is an animator. SUBMIT
Answers
Guy studies wildlife, while Colón is an engineer. The correct option is B.
What is article?An article is a piece of nonfiction writing that delves deeply into a specific topic or issue.
The purpose of an article is to inform, educate, or entertain the reader on a particular subject, and it often presents multiple perspectives or sides to an issue.
Articles can range in length from a few hundred words to several thousand words and can be found in newspapers, magazines, journals, and websites.
Cylita Guy's work is related to biology and ecology because she studies and researches insects and their ecosystems.
Alba Colón, on the other hand, is an aerospace engineer who works for NASA on the design and testing of space vehicles. While both are in STEM fields, their areas of expertise and job roles differ.
Thus, option B is the correct answer.
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Name 3 structures that belong to the Nervous System.
Answers
Answer:The nervous system comprises the central nervous system, consisting of the brain and spinal cord, and the peripheral nervous system, consisting of the cranial, spinal, and peripheral nerves, together with their motor and sensory endings.
Explanation:
The nervous system comprises the central nervous system, consisting of the brain and spinal cord, and the peripheral nervous system, together with their motor and sensory endings.
The Nervous System is a complex network of structures and cells that transmit signals between different parts of the body.
Three structures that belong to the Nervous System are:
Brain: The brain is the main control center of the Nervous System. It receives and processes information from the senses, controls thoughts, emotions, and behaviors, and coordinates the functions of the body.
Spinal Cord: The spinal cord is a long, thin bundle of nerve cells that extends from the brain down the back. It acts as a relay between the brain and the rest of the body. It carries signals to and from the brain, allowing us to move our muscles, feel sensations, and control bodily functions.
Nerves: Nerves are bundles of fibers that transmit signals between the brain, spinal cord, and the rest of the body. They are like highways that allow information to travel back and forth. There are different types of nerves, such as sensory nerves that carry information from the senses to the brain.
These three structures, the brain, spinal cord, and nerves, work together to enable communication and coordination within the Nervous System.
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