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More MCQs
100
For the declaration myString = 'Python is fun', what is myString[7]?
i
100
What will happen if we run this snippet of code?
Error - missing colon (:) at the end of if statement.
100
From the following contingency table, what percent of people define the range of those who have a MS degree and make $50K?
9.7 %
100
Given the following code listing, what would be a possible output?
{False, True, 2, 'one'}
100
What is the shape of this matrix?
(3,2)
3 rows and 2 columns
200
What is output by len(myString)
myString = 'Machine Learning' ?
16
200
If myList = [0,1,2,3,4,5,6], how many times does the code execute under the following statment:
for element in myList:
7
for loop runs once for each element of the list
200
Which of the following performs 'standard' matrix multiply? Assume numpy has been imported as np. Check all that apply...
a. '@'
b. 'np.multiply'
c. '*'
d. 'np.dot'
e. None of these
a. '@'
d. 'np.dot'
200
Given the following code, what would be printed by: print(myList2[1][3])?
5
200
Compute the mean and median of the following data set: 6, 5, 7, 2, 6, 5, 6, 8, 1
Mean 5.11
Median 6
300
No Output
(if = false --> Everything inside the if block is skipped)
300
Given the following code dictionary assignment, how would you change the price of 'Windbreaker' to $50.99?
coatPrice['Windbreaker'] = 50.99
300
Which of the following is a function that can be used to find missing/empty data in a Pandas data frame?
a. isNone()
b. isNan()
c. is missing()
d. isNull()
d. isNull()
300
Given the following code what would be printed by: print(station_1(3,3)) ?
's'
(12<10 ) --> False skip the return
300
What is the shape and size of the resultant matrix if multiplying two matrices of shapes
(2, 3) and (3, 4)?
Shape: (2,4) Size: 8
400
What does the following code print out?
0 thru 9 on successive lines
0 thru 9 one per line
400
Given the following code listing, what does line 35 do?
Checks if the number in 2D list is even.
400
What is the output from the following dot product operation?
[[5, 12], [-11, 7]]
400
What is printed in the last line of the output for the following code?
5,9
400
Identify which are outliers in this set of data:
6, 5, 7, 2, 6, 5, 6, 8, 9, 12, 10, 20, 22, 35, 7, 2, 13, 15, 4, 10.
Range -4 thru 22.0
35 is outside the range
500
Given the following code listing, what is the output when line 11 is executed?
Print 3: deque(['hello', 'python'])
500
What is printed from the following code listing for line 6?
7, nine
500
What matplotlib pyplot function can be used to set the range of values on the x and y axes?
xlim(), ylim()
500
Given the following code listing, what is the output when line 43 is executed?
[[11, 0, 5, 0, 1], [15, 0, 0, 7, 3], [0, 0, 0, 5, 13], [0, 15, 0, 0, 0]]
500
Compute the standard deviation of the sample data set: 6, 5, 7, 2, 6, 8 (i.e. compute the sample standard deviation).
s=4.27≈2.07