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What is the correct way to update a the key-value pair (1, ‘one’) in the following number dictionary? number = {1: ‘one’, 3: ‘THREE’, 90: ‘NINETY’}

Which of the following can be used to add an item to a dictionary?

months = {‘January’:[‘Enero’,’Januar’],           ‘February’:[‘Febrero’,’Februar’],           ‘March’:[‘Marzo’,’Marz’],           ‘April’:[‘Abril’,’April’]           } Given the above dictionary, how to access ‘Marz’ from the months?        

Suppose you are designing a small student repository to hold the student records for your IT109 class. You choose dictionary to be the data container. Which of the following will be your best attribute for dictionary key?

d = {“Ben”:27, “Jane”:23’}. What the following statement returns? >>> ‘Ben’ in d

What will be the outcome of the following code? >>> states = {‘VA’: ‘Virginia’, ‘CA’: ‘California’} >>> ‘NY’ not in states

Suppose d = {“VA”:1, “WV”:2}, If we try to retrieve a value using the expression d[“CA”]?

Exam paper: S25 Supply Exam1.docx

Scenario 1-2a. Suppose there are three residents in a neighborhood, Isabelle, Joe, and Kennedy. They are considering the allocation of a certain public good in the neighborhood. Isabelle’s demand for the public good is Q = 80 – 4P. Joe’s demand for the public good is Q = 40 – 2P. Kennedy’s demand for the public good is Q=20-P. If your answer is not a whole number, please make sure to round to the nearest hundredth.Refer to Scenario 1-2a. What is the socially optimal number of the public good if the marginal cost of producing them is $25?

Scenario 2-1. Suppose that the supply and demand in a particular market is given by: Qs = 100 + 3P Qd = 400 – 2P Refer to Scenario 2-1. What is the equilibrium price and quantity (do not enter a $ sign)? Price: [x] Quantity: [y]