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Consider the following social-affiliation network of a small neighbo.pdf

Consider the following situation. A researcher obtains a random sample of 50 college students that is representative of all college students. Each student in the sample identified their chronotype and determined whether Chronotype Theory correctly predicted the chronotype they selected. Of the 50 students, 26 indicate that they selected the chronotype predicted for them by Chronotype Theory..

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Consider the following social-affiliation network of a small neighbourhood community in
Toronto, consisting of some people DJ and two clubs C1 and C2. A new person K has recently
moved to the neighbourhood. We assume K can make an effort to initially get connected (i.e. in
week 0) to only one of DJ, C1, or C2. Consider triadic, membership and focal closures happen
over a one-week period with the probabilities of pt , pm, and pf respectively. We further assume
that these closures only happen if K is involved in them as the rest of the network is stable (i.e.,
no further closures will ever happen when restricted to just DJ,C1,C2).
a. Ignoring the probabilitites, K would just like to have the opportunity of connecting to every
person DJ as soon as possible (i.e. in the fewest number of weeks) by either making friends with
one person or joining one club.
(i) To which person should K initially become friends (in week 0)? Specify an appropriate
sequence of closures that makes such friendships possible and briefly explain (using properites
of the network) why there is no better person with whom K should become a friend.
(ii) To which club should K initially join? Specify an appropriate sequence of closures that
makes such friendships possible and briefly explain (using properites of the network) why there
is no better club for K to join.
b Is it possible that no matter to which person K initially becomes friends or to which club K
initially joins, that there is some way to become friends with everyone? Briefly explain.
c Specify a mathematical formula based on pt , pm, and pf which captures the probability of K
being connected to every person after two weeks (i.e. at the end of week 2) if it is initially
connected to C1.
d Specify a mathematical formula based on pt , pm, and pf which captures the probability of K
being connected to every other person after two weeks if it is initially connected to G.
e Suppose K has only two possible choices of G and C1 for making an initial connection. Also,
K has the goal of connecting to all other people in two weeks. Under which condition does
connecting to C1 have a higher chance of success than iconnecting to G in order for K to meet
his/her goal? [Hint: You should find a relationship between pt , pm, and pf ]. (D)

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  • 1. Consider the following social-affiliation network of a small neighbourhood community in Toronto, consisting of some people DJ and two clubs C1 and C2. A new person K has recently moved to the neighbourhood. We assume K can make an effort to initially get connected (i.e. in week 0) to only one of DJ, C1, or C2. Consider triadic, membership and focal closures happen over a one-week period with the probabilities of pt , pm, and pf respectively. We further assume that these closures only happen if K is involved in them as the rest of the network is stable (i.e., no further closures will ever happen when restricted to just DJ,C1,C2). a. Ignoring the probabilitites, K would just like to have the opportunity of connecting to every person DJ as soon as possible (i.e. in the fewest number of weeks) by either making friends with one person or joining one club. (i) To which person should K initially become friends (in week 0)? Specify an appropriate sequence of closures that makes such friendships possible and briefly explain (using properites of the network) why there is no better person with whom K should become a friend. (ii) To which club should K initially join? Specify an appropriate sequence of closures that makes such friendships possible and briefly explain (using properites of the network) why there is no better club for K to join. b Is it possible that no matter to which person K initially becomes friends or to which club K initially joins, that there is some way to become friends with everyone? Briefly explain. c Specify a mathematical formula based on pt , pm, and pf which captures the probability of K being connected to every person after two weeks (i.e. at the end of week 2) if it is initially connected to C1. d Specify a mathematical formula based on pt , pm, and pf which captures the probability of K being connected to every other person after two weeks if it is initially connected to G. e Suppose K has only two possible choices of G and C1 for making an initial connection. Also, K has the goal of connecting to all other people in two weeks. Under which condition does connecting to C1 have a higher chance of success than iconnecting to G in order for K to meet his/her goal? [Hint: You should find a relationship between pt , pm, and pf ]. (D)