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Teceml sludUnited Kingdom examined Juta 3898 purticinants for which they E Juformation on hoth victiminion by neer ae 13 and tlie [reserce ot dpression 'Ile st...

Question

Teceml sludUnited Kingdom examined Juta 3898 purticinants for which they E Juformation on hoth victiminion by neer ae 13 and tlie [reserce ot dpression 'Ile study lound more Ihan - Iwolald Intezse' oddv ol depiession bctweer childien tU nlat YIcUmed ard tllose #lo wete Inyucnuy victimized Thc A(Udsy usu Lorund thal Mnleseni Wcre vicuimized hy prers Kcnmon- likely tohe female #nd nre Vkely displated Hiphcr levels_ cmutionz ud behuwual ptblcms bclne tein;' tullicdSet Muldd previous

Teceml slud United Kingdom examined Juta 3898 purticinants for which they E Juformation on hoth victiminion by neer ae 13 and tlie [reserce ot dpression 'Ile study lound more Ihan - Iwolald Intezse' oddv ol depiession bctweer childien tU nlat YIcUmed ard tllose #lo wete Inyucnuy victimized Thc A(Udsy usu Lorund thal Mnleseni Wcre vicuimized hy prers Kcnmon- likely tohe female #nd nre Vkely displated Hiphcr levels_ cmutionz ud behuwual ptblcms bclne tein;' tullicd Set Muldd previous @Iional J tx hvlorul problems ntc ex hplees ot exputuslucy vuriablos lurking variables Jcprndeut Vrithles- Iasm Vaable.



Answers

A social study investigates people for different characteristics. One part of the study classifies people according to gender $(G_{1}=\text { female, } G_{2}=\text { male })$, drinking habits $(\mathrm{K}_{1}=\text { abstain }, \mathrm{K}_{2}=\text { drinks occasionally, } \mathrm{K}_{3}=$ drinks frequently), and marital . status $(\mathrm{M}_{1}=\text { married, } \mathrm{M}_{2}=\text { single, } \mathrm{M}_{3}=\text { divorced, } \mathrm{M}_{4}=$ widowed). .
a) List the elements of an appropriate sample space for observing a person in this study.
b) Define the following events:
$A=$ the person is a male, $B=$ the person drinks, and $C=$ the person is single List the elements of each $A, B$ and $C$.
c) Interpret the following events in the context of this situation:
$$A \cup B ; A \cap C ; C^{\prime} ; A \cap B \cap C ; A^{\prime} \cap B$$

Yeah. So following data or the percentages of women in their scientific work forces. Mhm. For a sample of 17 countries you have to constrict a stem and leave diagram for these present ages. Uh huh. So first we should think of each observation A system consisting of all but the right most digit and I'll leave the right most digit. So let's draw a vertical rule. Mhm. Mhm. You need to connect and Yeah. Okay. Yeah. Yeah. Yeah. Uh huh. Yeah. Yeah. Now we have to write this stems from smallest to largest in a vertical column to the left of the vertical rule. So yeah we should write the stems. You're the lead please. What? So the stem. Mhm. Should contest of all but the right month digit. So if you see the two digit thing for a cast the least is one. Okay. Mhm. You know Maximum values four. So we can write it from 1-4. So we loaded in the smallest too largest. Now we have to write each leave to the right of the vertical rule in the rule that contains the appropriate stem I think So if we see the first observation is 26 and the stem appropriate stem will be here and we have to write the right most digit. Yeah. That this six Similarly for 12 Eur two and 44 for over here. And 13 14 80 39. Yeah, 21 35 27. 34 28. Yeah. 34 28 33 2019 mm 29. Okay. Okay good. You Yeah. Now the last step would be we have to arrange the leaves and true in ascending order. So since we are uh oh what need for each observation? Yeah. Now we have to arrange each leave. So the steps would be 12 3 4. So the first leave B 238 It's already in ascending order to three and eight. Second one You'll be at least is one 67 8899. Yeah. Actually be three little bit four four 59 Its release, you know, Beautiful 42.

Okay, So this question for part, I asked us about the population, the populations, all individuals that were studying. And it's given in the question that we're studying all these years to Hawaii. Um, and not only that, but all visitors to Hawaii who traveled by plane. And it's important to specify because, um, visitors to Hawaii who traveled through some other means like a cruise or something might be a different population. Support be a success? Is the use of a question there a good way to be sure, the population of passengers on incoming airline flights? So yes, a question. It would be a good way to reach population because people are not influenced in their answers. People, uh, not influenced in their answer, because when we use the questionnaire, people feel free to respond how they actually feel. But if we use another method in my actually introducing bias or, for example, if people just go up to passengers and ask them questions directly, they might feel things like social desirability, bias or something like that. But since this seems to be a questionnaire that's probably anonymous, people won't be influenced, and they will be biased in the responses. So a questionnaire would be a good way to, um, get information, Parsi says. Comment on each of the four questions in terms of, um, in terms of whether they would provide categorical or quantitative data. Um, so there's two categories ones categorical, and then one is gonna be quantitative. So and in this part they're basically asking us to comment on each of the four questions, Um, in terms of whether they would provide categorical or, um, quantitative data. So categorical data is basically just data That's no, actually in terms of numbers, it's just described with actual words. Um, for example, the primary reason that they're going to Hawaii. That's not something you express with the number. It's something expressed with words so that be a categorical variable location of residents. That's also something that's categorical because again, you know, express your residence with numbers. It's it's with, like an actual city name or address. I'm some examples of quantitative would be like that the number of trips, because that's something you would express with actual number as well as, um, at sea. Um, total days. That's another value that you would express with numbers and not actually no, actually words, so that would be a quantitative variable

A sort of mating can contribute to species boundaries and Hawaiian lapolla crickets, the data observed, shows that traits of male song, pulse rate and female preferences for male song Pole Street are linked genetically. We see in further experiments by Kerry Shaw and her team showing the specific genetic basis of this genetic linkage, the research shows that female preferences functions for pulse rate, or uni modal, and that preference means show significant differentiation among populations. Also, estimates of pulse rate preference correlate significantly with mean pulse rates across populations, which indicates that song and preference co evolve in a step wise manner. So to sum up the correlated divergence between signal and preference suggests that sexual selection facilitates the establishment of sexual isolation, reduced gene flow and population differentiation, which are required for speciation.

Hello over on. I hope all is well. And today I will be helping you with the 68th problem of the Chapter 18 problem set. So this question is asking how would, though walk a Toby Flower packer be able to deem itself another species? So again, so separate species. So a whole species equals, um separate reproduction. So yes, that is what they demon as itself. So if you look at a A says the population have become dependent from an island of food sources. But if they could still reproduce with the original species, then it's not separates. And no. And then you'd be that says the populations have become morphological e distinct from the mainland. But if they could still reproduce their stilts technically, a similar species said no. Then you have see, the populations have become adapted to the island environment. Yes and no. And then you have d. The populations have become reproductive reproductively isolated from the mainland species, which is true because then they can no longer, um, reproduce do to, um a pre psychotic barrier, which is, you know, the islands being two separate. So I hope you found the cell phone, and I hope you have a great


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