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500 residents ofa city are classified as male or female and by their = opinion about public funding of abortions: OpinionForAgainst Undecided TotalsMale161235Eemale...

Question

500 residents ofa city are classified as male or female and by their = opinion about public funding of abortions: OpinionForAgainst Undecided TotalsMale161235Eemale123265Tqali240170500Foneoesidebitc suseteicted at random from this population, what Is the probability that the selected pet foc public funding of abortion? Indivdual Is 0.660 b.0.180 0.520 d.0.820 0.410

500 residents ofa city are classified as male or female and by their = opinion about public funding of abortions: Opinion For Against Undecided Totals Male 161 235 Eemale 123 265 Tqali 240 170 500 Foneoesidebitc suseteicted at random from this population, what Is the probability that the selected pet foc public funding of abortion? Indivdual Is 0.660 b.0.180 0.520 d.0.820 0.410



Answers

Scientific Study In a scientific study there a guinea pigs, 5 of which are pregnant. If 3 are selected at random without replacement, find the probability that all are pregnant.

Number 14. It says in a scientific study there are eight guinea pigs, five of which are pregnant. If three are selected at random without replacement, find the probability that all are pregnant. So getting our contact set up, we have eight total guinea pigs. Um tells us that we have five that are pregnant and three, that air, not pregnant. You want to find the probability of selecting three, and all three are pregnant. So in this case, we're looking at selecting three guinea pigs, but it's without replacement. So this is not a binomial model. Something not to do for my students is for them to see that we have three selections and that we want the first game two p to be pregnant and the next time you pick to be pregnant and the next GDP to be pregnant. So if we label at this pregnant and pregnant and pregnant, I teach my students that and means multiplying probability. So we just got to account for the without replacement part of this. So there's a total guinea pigs, and they're probably getting a pregnant One is 5/8. So the next one, um, the second selection would be after one has already been selected, so there's seven remaining. We did select a pregnant guinea pigs. You know there's only four pregnant guinea pigs remaining, and then my last election. There's only six to choose from and we've already selected to pregnant guinea pigs. Eso we have three to choose from, so we're gonna multiply enumerators and denominators on the top. We get 60 on the bottom, we get 336 and that is approximately 0.17 86

Magazine has 1,200,000 subscribers, of which 400,000 are men and 500,000 or woman and ignore 1000 armed men. It says 20% of the woman and 60% of the men read the advertisement in the magazine. And it's asking us to find that probability, Pete, that when you randomly selected subscriber, that subscriber reads the advertisements. So let's form a formula. Finance basically way need the total number of people that reads over the total number of people, while the total number of people that read is equivalent to 0.20 of 400,000 plus 0.60 of 800,000. Because that's what the percentage just tell us. That basically told us that 20% of the woman read 2060% of the men read, and that's divided by ah, 1,200,000. Such matters will give us our probability, p and it we simplify this. We get 0.46 repeat and the answer choice. Of course, Monster, this is is actually answer Choice D, because answer Choice d 0.747 is 0.47 and eight different from seven. Just got it out for sure. This is the answer

All right. So this problem, they're saying that probability of owning a dog is 0.372 What is it? Probably that a randomly selected household owns the dog. Probability of a dog. Ownership is 0.372

On this problem, we're told that the probability of certain person living in the city owns a dog is estimated to be 0.4. So this means r. P. Value 0.4. We want to find the probability that the 10th person randomly selected is the fifth one on the dark. Yeah. That means we're gonna have 10 people. Now I'm setting this up. Let's look at the first nine. Hey let's worry about the first nine for the first nine. Okay. Yeah. Mhm. We want $4 five, no doubt. And so the ways that we can arrange this will be nine choose four or nine choose four different ways that we could organize this. We want four dogs in the probability of that august 0.470 point four to the fourth. And then no dogs would be 0.6 and five of those. Mhm. And so the 0.6 to the fifth. And so this would be the probability that in the first nine we got four dogs and five without any dollars. But then on the 10th one, we need another dog on the 10th, one with another 0.4. So we multiply by 0.4 here and then now we just need to evaluate this expression. In order to find this probability. We take nine shoes for times 0.4 of the fourth, Times points search to the fifth times another 0.4. And doing so gives us 0.100 three. So that's our probability.


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