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10 Qs

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Assessment

Quiz

Computers

Professional Development

Practice Problem

Medium

1, 2, 3

+7

Standards-aligned

Created by

hubert Lu

Used 7+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of the following code?

import numpy as np

x = np.array([[1, 2], [3, 4]])

y = np.array([[5, 6], [7, 8]])

z = np.dot(x, y)

print(z)

a) [[19, 22], [43, 50]]

b) [[5, 6], [7, 8], [1, 2], [3, 4]]

c) [[6, 8], [10, 12]]

d) [[1, 2], [3, 4], [5, 6], [7, 8]]

Tags

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of the following code?

import numpy as np

x = np.array([[1, 2], [3, 4]])

y = np.array([5, 6])

z = x * y

print(z)

a) [[5, 12], [15, 24]]

b) [[5, 6], [5, 6]]

c) [[1, 2, 5, 6], [3, 4, 5, 6]]

d) ValueError: operands could not be broadcast together with shapes (2,2) (2,)

Tags

2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the output of the following code?

x = 5

if x > 3:

print("x is greater than 3")

else:

print("x is less than or equal to 3")

a) x is greater than 3

b) x is less than or equal to 3

c) x is equal to 3

d) None of the above

Tags

3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the data type of the value 5 in Python?

float

string

Integer

list

Tags

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a valid string declaration in Python?

string("Hello")

str = Hello

str('Hello')

string = 'Hello'

Tags

5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you get the length of a string s in Python?

len(s)

s.len()

length(s)

s.length()

Tags

6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which function is used to convert a string to an integer in Python?

int()

str()

convert()

toInt()

Tags

7

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