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8i470, The The Why is the Question first case uses The first case involves 1 analysis in the second court analysis Consider the two court cases 1025 used in proport...

Question

8i470, The The Why is the Question first case uses The first case involves 1 analysis in the second court analysis Consider the two court cases 1025 used in proportion of matches students conclusion based tceferis cour 08 discussed on wrong peaisui on probability: court case of only an this sjamsue 'anelmple 0 V F ansiers of statistical inference, [ but the pts 4pts

8i470, The The Why is the Question first case uses The first case involves 1 analysis in the second court analysis Consider the two court cases 1025 used in proportion of matches students conclusion based tceferis cour 08 discussed on wrong peaisui on probability: court case of only an this sjamsue 'anelmple 0 V F ansiers of statistical inference, [ but the pts 4pts



Answers

Classify the statement as an example of classical probability, empirical probability, or subjective probability. Explain your reasoning. You think that a football team's probability of winning its next game is about $0.80 .$

In an entrance test That is graded on the basis of two examination, the probability of randomly choose a student passing. The first examination is 0.8 and the probability of passing the second examination is 0.7. The probability of passing at least one of them is 0.95 but is a probability of passing both. So let a M B. B. The event of passing 1st and 2nd examination. Accordingly, probability of A. S equals two. 0.8, Probability of B is equal to 0.7 and Probability of a. or b is equals two 0195 has been no. That probability of A. Or B is equal to the probability of E plus probability of B minus probability of A and B. By substituting the known values we get 0.95 is equal to 0.8 plus 0.7 minus probability of A. And B. By simplifying it, we get probability of A. And B as equals two 0.8 plus 0.7 minus 0.95 It would be equals to 0.55 does. The probability of passing both examinations is 0.55.

All right. Let's review a little bit. First of all, when we have the samples, we made some assumptions. If the variable X. As normally distribution, then we we can have this result. The sample of the variable is also normal. So regardless of the sympathize if the original variable is normally distributed, the sample variable is also normally distributed. And if access not normal decision and Okay, well, we need to have an so it's large. For example, his career. Are you good in 30? Then we can also say that excess approximately not only distribution. The fact is that if it's not normal, we need to have this constraint when this emphasis should be large, then we have this centered on this serum, then we can use it So we need to make these two different things.

So we got a staff class. Um it's a college class. Maybe it's a high school class. Not really sure. Maybe we could say that's a class size about 30 or so. You grabbed ones too and none of that class and say that they have an A. Um That's the situation that we're looking for. What is the probability that we have at least one student with an A. Well the secret to having at least one. The probability of at least one is the same thing as the probability of having 1- No students getting an a. Yeah. And maybe if we say that this is the probability that no one gets in a is going to be like 5%. That would say that the probability that there's at least one a. Is going to be about 95%. And then if we know that this elected class is a special section for honor students with very high GPS Nerds and we'll just see okay, well there's gonna be a lot of them. So that probability is going to go up a little higher. What's a little higher than .95. Let's just say 0.999 like hand sanitizer level, likely that they will again, me

Properly over 60. I don't remember 60 a. Um that is right. Nice Krayer. Best for the ah were in the vendors s so we can say that in general 11 proportion is acceptable and instructor before one infill Is that breast? Oh, good. As to proportion. He's cross running through toe. Same professed. Alright, What any good of it? Uh, can say that's what I mean. One mean it's correspondent toe one Santel uh, teen. Think this or a terrible on a still mean greens It's just going forward to assemble, uh, elitist were in prison or a beard. He just wouldn't go today, um, also and women or association or modernity suitable to buy this squares. So ah, what's reuse? Ah, yes. If you mean from the best for a difference Rollicking increase or the greens. And And we was incredible reruns. Who is to me and terrible in which the ready noise That's why we hear it was a place where test for association or in the winters Because we are interested in the relationship. Ah, between the variables and it is the answer for creature a for which and be we when you was ah to stay in a little e good, Really? For ah difference Africa. What? We are interested in an estimate off the differences between two average or were the tour simple?


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