1 <questionbank> |
1 <questionbank> |
2 <day1quiz1> |
2 <day1quiz1> |
3 |
3 |
4 <question> |
4 <question> |
5 <description> |
5 <description> |
6 How will you set the x and y axis limits so that the region of interest is in the rectangle (0, -1.5) and (2\pi, 1.5)? |
6 Describe the plot produced by the following code |
|
7 </description> |
|
8 <time_limit> |
|
9 30 |
|
10 </time_limit> |
|
11 <code> |
|
12 In []: x = linspace(0, 2*pi, 50) |
|
13 In []: plot(x, cos(x), 'go') |
|
14 </code> |
|
15 <expected_answer> |
|
16 Correct this question manually |
|
17 </expected_answer> |
|
18 </question> |
|
19 |
|
20 <question> |
|
21 <description> |
|
22 What ipython magic command do you use to obtain the lines of code you have already typed in the interpreter? What command do you use to save them? |
|
23 </description> |
|
24 <time_limit> |
|
25 30 |
|
26 </time_limit> |
|
27 <expected_answer> |
|
28 \%hist \%save |
|
29 </expected_answer> |
|
30 </question> |
|
31 |
|
32 <question> |
|
33 <description> |
|
34 How do you set the x and y labels of a plot to "x" and "sin(x)" ? |
|
35 </description> |
|
36 <time_limit> |
|
37 60 |
|
38 </time_limit> |
|
39 <expected_answer> |
|
40 xlabel \( \" x \" \) ylabel \( \"sin\(x\)\" \) |
|
41 xlabel \( \" x \" \) ylabel \( \'sin\(x\)\' \) |
|
42 xlabel \( \' x \' \) ylabel \( \"sin\(x\)\" \) |
|
43 xlabel \( \' x \' \) ylabel \( \'sin\(x\)\' \) |
|
44 </expected_answer> |
|
45 </question> |
|
46 |
|
47 <question> |
|
48 <description> |
|
49 How will you set the x and y axis limits so that the region of interest is in the rectangle (0, -1.5) and (2 pi, 1.5)? |
7 </description> |
50 </description> |
8 <time_limit> |
51 <time_limit> |
9 90 |
52 90 |
10 </time_limit> |
53 </time_limit> |
11 <expected_answer> |
54 <expected_answer> |
12 xlim \( 0 , 2 \* pi \) [;,\n+] ylim \( -1.5 , 1.5\) |
55 xlim \( 0 , 2 \* pi \) [;,\n+] ylim \( -1\.5 , 1\.5 \) |
13 </expected_answer> |
56 </expected_answer> |
14 </question> |
57 </question> |
15 |
58 |
16 <question> |
59 <question> |
17 <description> |
60 <description> |
18 If a = [1, 2, 5, 9] then what is the value of a[0:-1] |
61 How do you combine two lists a and b to produce one list? |
19 </description> |
62 </description> |
20 <time_limit> |
63 <time_limit> |
21 30 |
64 30 |
22 </time_limit> |
65 </time_limit> |
23 <expected_answer> |
66 <expected_answer> |
24 \[ 1 , 2 , 5 \] |
67 a \+ b |
25 </expected_answer> |
68 </expected_answer> |
26 </question> |
69 </question> |
27 |
70 |
28 <question> |
71 <question> |
29 <description> |
72 <description> |
30 A sample line from a Comma Separated Values (CSV) file: |
73 If a = [1, 2, 5, 9] how do you add 10 to the end of this list ? |
31 line = "Rossum, Guido, 42, 56, 34, 54" |
74 </description> |
|
75 <time_limit> |
|
76 30 |
|
77 </time_limit> |
|
78 <expected_answer> |
|
79 a\.append \( 10 \) |
|
80 a = a \+ \[ 10 \] |
|
81 a \+= \[ 10 \] |
|
82 </expected_answer> |
|
83 </question> |
|
84 |
|
85 <question> |
|
86 <description> |
|
87 Write the code to read a file "data.txt" and print each line of it? |
|
88 </description> |
|
89 <time_limit> |
|
90 60 |
|
91 </time_limit> |
|
92 <expected_answer> |
|
93 correct this manually |
|
94 </expected_answer> |
|
95 </question> |
|
96 |
|
97 <question> |
|
98 <description> |
|
99 The following code snippet has an error/bug. |
|
100 What is the error? |
|
101 </description> |
|
102 <code> |
|
103 In []: l = [0.1, 0.2, 0.3, 0.4] |
|
104 In []: t = [0.69, 0.90, 1.19, 1.30] |
|
105 In []: tsq = [] |
|
106 In []: for time in t: |
|
107 ....: tsq.append(time*time) |
|
108 ....: plot(l, tsq) |
|
109 </code> |
|
110 <time_limit> |
|
111 60 |
|
112 </time_limit> |
|
113 <expected_answer> |
|
114 plot |
|
115 </expected_answer> |
|
116 </question> |
|
117 |
|
118 <question> |
|
119 <description> |
|
120 "Rossum, Guido, 42, 56, 34, 54" is a sample line from a Comma Separated Values (CSV) file |
32 What code would you use to separate the line into fields? |
121 What code would you use to separate the line into fields? |
33 </description> |
122 </description> |
34 <time_limit> |
123 <time_limit> |
35 30 |
124 30 |
36 </time_limit> |
125 </time_limit> |
37 <expected_answer> |
126 <expected_answer> |
38 line\.split \( \" , \" \) |
127 \.split \( " , " \) |
39 line\.split \( \' , \' \) |
128 \.split \( ' , ' \) |
40 </expected_answer> |
129 </expected_answer> |
41 </question> |
130 </question> |
42 |
131 |
43 <question> |
132 <question> |
44 <description> |
133 <description> |
47 <time_limit> |
136 <time_limit> |
48 30 |
137 30 |
49 </time_limit> |
138 </time_limit> |
50 <expected_answer> |
139 <expected_answer> |
51 len \( a \) |
140 len \( a \) |
|
141 </expected_answer> |
|
142 </question> |
|
143 |
|
144 <question> |
|
145 <description> |
|
146 What is the output of the following code snippet |
|
147 </description> |
|
148 <code> |
|
149 In [1]: d = { |
|
150 'a': 1, |
|
151 'b': 2 |
|
152 } |
|
153 In [2]: print d['c'] |
|
154 </code> |
|
155 <time_limit> |
|
156 30 |
|
157 </time_limit> |
|
158 <expected_answer> |
|
159 error |
|
160 Error |
|
161 ERROR |
|
162 </expected_answer> |
|
163 </question> |
|
164 |
|
165 <question> |
|
166 <description> |
|
167 Given the below dictionary, what command will you give to plot a pie-chart? |
|
168 </description> |
|
169 <code> |
|
170 In []: sc = {'A': 10, 'B': 20, |
|
171 'C': 70} |
|
172 </code> |
|
173 <time_limit> |
|
174 60 |
|
175 </time_limit> |
|
176 <expected_answer> |
|
177 pie \( sc\.values \( \) \) |
|
178 pie \( sc\.values \( \) , labels = sc\.keys \( \) \) |
|
179 </expected_answer> |
|
180 </question> |
|
181 |
|
182 <question> |
|
183 <description> |
|
184 Given the below marks, how will you calculate the mean? |
|
185 </description> |
|
186 <code> |
|
187 In []: marks = [10, 20, 30, 50, 55, |
|
188 75, 83] |
|
189 </code> |
|
190 <time_limit> |
|
191 30 |
|
192 </time_limit> |
|
193 <expected_answer> |
|
194 mean \( marks \) |
|
195 sum \( marks \) \/ len \( marks \) |
|
196 </expected_answer> |
|
197 </question> |
|
198 |
|
199 <question> |
|
200 <description> |
|
201 How will you convert the list marks to an array? |
|
202 </description> |
|
203 <code> |
|
204 In []: marks = [10, 20, 30, 50, 55, 75, 83] |
|
205 </code> |
|
206 <time_limit> |
|
207 30 |
|
208 </time_limit> |
|
209 <expected_answer> |
|
210 array \( marks \) |
52 </expected_answer> |
211 </expected_answer> |
53 </question> |
212 </question> |
54 |
213 |
55 </day1quiz1> |
214 </day1quiz1> |
56 |
215 |