Since a partial dependency can exist only if a table’s primary key is composed of several attributes, if a table in 1NF has a single-attribute primary key, then the table is automatically in 2NF.

Repeating groups must be eliminated by ensuring that each row defines a single entity.

Which of the following is a specialization hierarchy disjoint constraint scenario in case of partial completeness?

Your radiologist asks you to repeat a scan in order to double your SNR. The parameters are T1-weighted SE with a 500 ms TR, 20 ms TE, 1 NEX, 256 x 256 image matrix.  What parameter will you change in order to double SNR and what do you change it to?  What will the resultant scan time be for this scan assuming all other parameters are unchanged?

When we try to explain crime rate changes over time, we should explain it with a year-by-year comparison (ex. compare 2019 to 2020) instead of a 10-year comparison (ex. 2010 to 2020).

Welcome to your final exam for digital marketing. This is a reminder. If you are using notes (1 page, double-sided), then remember to show both sides to the proctor after the ID check. If you did not already do so, take your one page of notes and show both sides of your sheet of paper to your webcam now. Then, proceed to the next exam question.

(Essay) – An essay is more than one paragraph. Summarize your team’s campaign (i.e., the brand you were assigned, the campaign idea your team proposed, and the target market). Then explain what you would do to develop its content marketing based on arguments and lessons from Chapter 12. 

Which of the following is not a benefit of having a simple model vs. a complex model?

A coffee manufacturer claims that the mean amount of coffee in its 4-ounce jars is 4.1 ounces. A consumer advocate group tests whether or not the true average amount of coffee in the 4-ounce jars differs from 4.1 ounces at the 5% level of significance. Based on a sample of 40 4-ounce jars, they find that the average amount of coffee in 4-ounce jars is 3.9 ounces and the standard deviation is 0.45 ounces. Note:

Assume that the prior distribution of probability of success θ in a single Bernoulli trial has density: