CP M.8.1-8.5 Quiz Review

In Python, an array is called a (a)   .

A list stores data using multiple variable names.

• True

• False

We use lists in programs to ______________ data.

• get external

• get user

• organize

Where does append add the new elements?

• To the beginning of an array

• To the middle of an array

• To the end of an array

• In alphabetical/numerical order.

The (a)   is the address/location of a piece of data.

A(n) (a)   is an individual piece of data in an array.

Consider the following code:

price = [24.99, 20.00, 12.50, 3.99]

This code is an example of a(n) ______________  _____________.

• output list

• index list

• initializer list

• parameter list

Why do we use for loops with lists?

• Because they take user input.

• Because we do not know how many times the loop will repeat.

• Because they let us quickly process the contents of a list, which has many values.

• Because they allow us to test boolean conditions.

The ___________ method adds a new element onto the end of the list.

• add

• input

• append

• len

Consider the following code that works on a list of integers:

for i in range(len(values)):  

if (values[i] < 0):        

values[i] = values [i] * -1

What does it do?

• Changes all negative numbers to positives.

• Nothing, values in lists must be positive.

• Subtracts one from every value in the list.

• Changes all positives numbers to negatives.