Python Sets

Which of the following are true for objects of Python’s set type:

• The order of elements in a set is significant.

• A given element can’t appear in a set more than once.

• Sets are mutable.

• A set may contain elements that are mutable.

What will be the output of the following Python code? *

x={1,3,5}

y={2,4,6}

x+y

• {1,3,5,2,4}

• {1,3,5,2,4,6}

• Error as the duplicate item 6 is present in both sets

• Error as unsupported operand type(s) for +: 'set' and 'set'

Which of the following functions will return the symmetric difference between two sets, x and y? *

• x | y

• x ^ y

• x & y

• x – y

What will be the output of the following Python code?

x = {4,7,8,8,9}

print(x)

• {4, 7, 9}

• {8, 9, 4, 7}

• {4, 7, 8, 8, 9}

• Error

Which of the following statements is used to create an empty set?

• { }

• set()

• [ ]

• ( )

What will be the output of the following Python code?

x = {6,5}

y = {2,3,5,6}

x<y

• {1,2}

• True

• False

• Invalid operation

The _________ function removes the first element of a set and the last element of a list.

• remove

• pop

• discard

• dispose

Which of these about a set is not true?

• Mutable data type

• Allows duplicate values

• Data type with unordered values

• Immutable data type

If x={5,6,7,8}, which of the following statements is false?

• print(len(x))

• print(min(x))

• x.remove(5)

• x[2]=45

Which of the following is not the correct syntax for creating a set?

• set([[1,2],[3,4]])

• set([1,2,2,3,4])

• set((1,2,3,4))

• {1,2,3,4}