check point 1

1 What does a variable do?

• ·       Stores a value in memory  

• ·       It works out the maths

• ·       Helps you print to screen

What would the answer be? if user enter 33

x = input("enter a number ")

print(x+x)

• 33

• 31

• Error

How to use numpy ?

•       import pandas as pd

• import numpy as np

Name the function used to create an array?

•   np.array()

•    Np.array()

•   np.arange()

3 What would be the answer?

a = "564"

b = "2342"

print(a+b)

• 5642324

• 564

• 2324

4 What would happen here?

a = input ("enter a number")

b = int(input("enter a number"))

print (a+b)

•  There would be an error

•     It would add the 2 numbers

• It would join the 2 numbers together·

5 What is the output of the following code :

print(9//2)

• 4

• 4.0

• error

What data type is the object below ?

L = [1, 23, ‘hello’, 1]·  

• Array

• string

• variable

What is the word (command) used to display numbers and text on the screen?

•   print() 

• command

• output

What symbol is used in python to assign values to a variable?

•    forward slash (/)

•   asterisk (*)

• ·       equals (=)