Lecture 2 Flashcard

Front

Which of the following is not a data type from Python? Bool, NoneType, Tuple, Array

Back

Array

Front

Which built-in function determines the data type of a value? Options: varType(), type(), data(), dataType()

Back

type()

Front

What does type(None) return?

Back

NoneType

Front

T or F: Tuples can contain elements of different data types.
Ex: (4, 3.2, "6", "a")

Back

True

Front

Which of the following is the correct way to initialize a variable of type string then cast it to a float? Options: var = "8.0" var = float(var), str var = "8.0" var = float(var), var = "8.0" var = (float) var, str var = "8.0" var = (float) var

Back

var = "8.0" var = float(var)

Front

Which of the following accurately uses a for loop to print "hello world" some N times?
Options:
for (int j = 0; j<N; j+=1) {
print("hello world") }
,
for (int j = 0; j < N; j++):
print("hello world")
,
for j in range(N):
print("hello world")
,
for j in range(len(N)) {
print("hello world") }

Back

for j in range(N):
print("hello world")

Front

Which of the following accurately uses a while loop to count the number of even numbers from 0 to N (including N)?
Options:
count = 0
j = 0
while j<N+1:
if j%2 == 0:
count += 1
j += 1
,
count = 0
j = 0
while j<N:
if j%2 == 0:
count++
j++
,
count = 0
while j in range(N):
if j%2 == 0:
count += 1
,
count = 0
while j in range(N+1):
if j%2 == 0:
count += 1

Back

count = 0
j = 0
while j<N+1:
if j%2 == 0:
count += 1
j += 1

Front

What is the order that this arithmetic expression should be solved? 3 + (4 + 0.7) // 2 % 1.5 * 3

Back

Addition in Parentheses
Floor Division
Modulo
Multiplication
Addition Outside

Front

What is printed?
var = "a"
print(var in "baab")

Back

True

Front

Which two functions should you use to find the minimum value in a list then take the absolute value of it?

Back

min(), abs()