T2Q1A11[CAI]/51

Which of the following Python libraries is used to model vectors and matrices efficiently?

• SymPy

• Pandas

• Scipy

• Numpy

What letter will be printed on the screen after running this code:

city = "Exeter"

letter = city[3]

print (letter)

• e

• x

• t

• Nothing prints

What is the position of the name "Robert" in the following list:

names = ["Bob", "Bobby", "Robert", "Rob"]

• 0

• 1

• 2

• 3

What does the append function do in the following code:

cities = ["Manchester", "Exeter", "Bristol"]

cities.append("Liverpool")

print(cities)

• Adds Liverpool to the beginning of the list

• Replaces Bristol with Liverpool

• Replaces Manchester with Liverpool

• Adds Liverpool to the end of the list

In the following code, city is an example of a what?

city = "Exeter"

• List

• Function

• Variable

• Array

Each item in a list has an index. What is the first index in a Python list?

• 0

• 1

• a

• A

What is the output of the following code segment in Python?

countries = ["France", "Wales", "England"]

print(countries)

print(countries[1])

• ['France', 'Wales', 'England']

  France

• ['France', 'Wales', 'England']

  Wales

• France, Wales, England

  Wales

• France Wales England

  France

What is the output of the following code segment in Python?

countries = ["France", "Wales", "England"]

countries[1] = "Ireland"

print(countries)

• ['France', 'Wales', 'England']

  Ireland

• ['France', 'Ireland', 'England']

• ['France', 'Ireland', 'Wales', 'England']

• ['Ireland', 'Wales', 'England']

In a list called players, if you want to delete the item with an index of 3, which of the following Python statements would be correct?

• players.pop[3]

• players.delete(3)

• players.remove(3)

• players.pop(3)

In a list called players, if you want to add a player called Bob to the list, which of the following Python statements would be correct?

• players.add("Bob")

• player.append("Bob")

• players.append("Bob")

• players.addend("Bob")