Python Programming Quiz

Which of the following is a valid Python expression?

• x = 10 +

• y = (5 * 3) / 2

• print("Hello)

• if 5 > 3 print("Yes")

What will L.count(5) return for L = [1, 5, 7, 5, 2, 5]?

• 2

• 3

• 5

• Error

How do you reverse a list L = [1, 2, 3, 4]?

• L[::-1]

• reverse(L)

• L = L.reversed()

• L.append(L.reverse())

Which statement correctly defines a function?

• def func():

• define func():

• function func():

• def function():

Which of the following is an immutable data type?

• List

• Set

• Tuple

• Dictionary

What is the output of print("Python"[::-1])?

• nohtyP

• Python

• Pytho

• Error

What does open('file.txt', 'a') do?

• Reads a file

• Writes to a file

• Appends to a file

• Overwrites a file

What is the mode of [3, 3, 4, 2, 4, 4, 2, 2, 2]?

• 2

• 3

• 4

• None

What is the median of [5, 8, 3, 12, 7]?

• 3

• 7

• 8

• 12

In a binomial distribution, if n=10 and p=0.5, what is the expected value?

• 2.5

• 5

• 10

• 0.5