If there were just one question, then the probability of guessing correctly would be 1/3.
Since all the answers are independent (the answer to one question has no bearing on the answers to the others), then this is the case with each question, so the chances of guessing all answers correctly is 1/3 × 1/3 × 1/3 = 1/27. Independent choices are linked by multiplication.
To have exactly 2 answers correct, we have to think of which one is wrong: there are 3 questions and any single one could be wrong. The probability that the first question is wrong is 2/3. And we know that the probabilities of the other two being right is 1/3 each, so the probability of just the first question being wrong and the others right is 2/3 × 1/3 × 1/3 = 2/27. But this is just one of the three cases: 1/3 × 2/3 × 1/3 and 1/3 × 1/3 × 2/3 also both equal 2/27 each. So here we add the cases together: 2/27 + 2/27 + 2/27 = 6/27 = 2/9. So the answer to part (a) of your question is 2/9.
To solve (b) Consider that (b) is the same as (a) with "all answers right" added in. So you can simply add answer (a) to the chance of guessing all answers correctly.
To solve (c) it might help you to think of the equivalent problem: what is the probability of getting 0 correct plus the probability of getting 1 correct?
Answer:
Monopoly, Monopolistic Competition, and Oligopoly.
Step-by-step explanation:
Lets look at each of the options one by one:
Perfect Competition: This type describes a market structure, in which a large number of small firms compete against each other. A single firm does not have any significant market power and so is the seller. As a result, the industry as a whole produces the socially optimal level of output, because none of the firms have the ability to influence market prices.
Monopoly: It is a type of market structure where a single firm or seller controls the entire market. The firm has the highest level of market power because consumers do not have any alternatives. Consequently, monopilists often reduce output deliberately to increase prices and earn more profit.
Monopolistic Competition: It is a kind of market structure, where a large number of small firms or sellers compete against each other but they sell slightly differentiated products. And that gives them a certain degree of market power which allows them to charge higher prices within a certain range.
Oligopoly: In this market structure it is dominated by only a limited number of firms or sellers. Resulting in a state of limited competition. The sellers can either compete against each other or can collaborate. This way they can use their market power to drive up prices and earn more profit.
So basically there are three kinds of market structures in which sellers can have some control over price and they are Monopoly, Monopolistic Competition, and Oligopoly.
(3,6) < Pick 2 set's to find the slope
(6,2)
6-2=4
3-6=-3
Slope:-4/3
y=mx+b
6=-4/3(3)+b. <use one of the set's and the...
-4 -4 < inverse
2=b
Y-int = 2
x y
Answer: (-4/3, 2)
Answer:
g(x)=4
Step-by-step explanation:
hope it helps im not 4 sho tho
Answer:
x=4
Step-by-step explanation:
This is a vertical line. Vertical lines are of the form x=
x=4
