$1.$

An array is$...($choose the best option$)$

A$.$

a collection of various data types

B$.$

an immutable list

C$.$

an unordered collection of unique objects

D$.$

a collection of objects, each identified by a key, not a numerical index

E$.$

a collection of a single data type indexed by integer subscripts for use in numerical methods and statistical calculations, provided by the NumPy module

$23.$

To use the number $\backslash$pi

in Python, you would first import the math module by typing

import math

$.$ Then, you would access the number by typing

math.pi

$.$

$46.$

In this question, you will be asked what you would need to type to perform a task using Python. For example, if you wanted to create a variable named a

with value $4($i$.$e$.$ a$=4$

$)$ and then take the square root of a

$,$ you would type:

a$=4$

import math

math.sqrt$($a$)$

Note that I have used the minimize amount of white space, i$.$e$.$ I wrote $"$a$=4"$ instead of $"$a $=4".$

Here is the question:

To create an array A$=[1,2,3]$

$,$ you would first import the

numpy

module. The standard way to do this is by typing

import numpy as np

$.$ You would then make the array by typing

a$=$np$.$array$([])$

$($do not use any unnecessary white space$).$

$7.$

If A

is an array with $5$ elements and you wanted to access the first $3,$ you would type A$[$

$0$:$3$

$]$

$.$ Do not use any whitespace.

$8.$

To evaluate $4214$

$,$ you would type

Question $8$

$.$ Do not use any whitespace.