Kyra is so lost in window shopping that she does not realize that it is way past eight at night, and she needs to head home now. Which of the following terms best describes Kyra’s deep involvement with window shopping?

A scientist is studying a pollutant that acts as an endocrine disruptor, affecting the reproductive success of a fish population. The pollutant is a lipophilic molecule, poorly soluble in water, and persists in the environment. Which of the following pathways is most likely responsible for the observed effects?

A community living near a former industrial landfill is concerned about potential exposure to polychlorinated biphenyls (PCBs) found in the soil. The most significant long-term exposure pathway for the community is likely to be:

In circuit switching network, how many dedicated transmission lines would be required for 800 users? 

With Persistent-HTTP, multiple objects can be sent over single TCP connection between client and server. 

DNS servers are running in the network core.

A 64-kilobyte message is to be transmitted over two hops in a network as shown below. The network limits packets to a maximum size of 2 kilobytes, and each packet has a 32-byte header. The transmission lines in the network are error free and have a speed of 50 Mbps. Each hop is 1000 km long. How long does it take to get the message from the source to the destination? Assume,  the signal travels at the speed of light (3×108 m/s); queueing and processing delays at the intermediate switch are negligible.

Use the table below to answer the following questions. You do not need to show your work, but you must provide some evidence to support your claims (1 sentence). All questions below are worth 1 point each. Please clearly label your responses for each individual question.     Medicaid Private Insurance No Insurance   Less than a High school degree 300 50 50 400 High school degree 500 950 130 1,580 Some college or more 180 800 20 1,000 Graduate degree 20 200 0 220   1,000 2,000 200 3,200 17. In your own words, what does the value in the highlighted/red cell represent? 18. Which insurance type has the highest rate of individuals with an education level of High School Degree? 19. Which education level has the most individuals on Medicaid? 20. Conditioned on having Medicaid, what is the second most common education level? 21. Is the answer to question 20 (above), different than the overall second most common education level?

Which bivariate association(s) would be best represented using a scatterplot?

We are interested in exploring the association between income and happiness, separately for male and female participants. The two scatterplots below show the association between these variables, conditioned on whether or not participants are male or female. Use the information in these figures to respond to the prompt below: In a short paragraph, describe the associations that are represented in the scatterplot(s). Be sure to discuss the following: 1) The strength and direction of the associations (2 pts), 2) the dependent and independent variable in the associations (1 pt), 3) which association is stronger (1 pt), and 4) a final sentence bringing together all of this information to summarize what the association looks like across these groups (2 pts).