Quiz 1. CSCI 115. Programming Fundamentals

(4 pts.) What are the types of individual variables? Write their data types on the empty blank.

	Answer
A=3; >>> type (a);
B = 5.2 >>>type(b);
C = ‘7.3’ >>>type(c);
B = ‘hello world’;type(d);

(4 pts) Assume variable a holds 2 and variable b holds the value 4, then write the result of operators:

	Answer
A - b
A+b*a
A**b
A + b

(4 pts.) What would be expected output of print() function if we run the following code? >>> a = ‘nazarbayev’ >>> b = ‘university’ >>> c = a + ‘ ’ +b

	Answer
Print( c )
Print( 2*b )
Print( a[1:] )
Print( b[0::1] )

(14 pts.) Hand writing coding test.

1-1) Ask the user to input three individual numbers and then output their average. The average value should be the float data type and include two decimal points.

1-2) Print out an exact same sentence with the given three numbers as below:

'User's input numbers are {num1}, {num2}, and {num3}.'

2-1) Create a list type variable which contains three strings: 'Kazakhstan', 'Russia', and 'Korea'. Print out the list.

3-1) Create a dictionary type variable which contains a pair of {num:country}, I.e., three input numbers should be the keys for three string values in the list. Print out the dictionary.

4-1) Create a string value by concatenating three values in dictionary. Individual values are divides by ',' symbol with a single space, I.e., 'Kazakhstan, Russia, Korea'. Print out the string.

Expected output:

>>> input first number: 4
>>> input second number: 7
>>> input third number: 9
Average value is : 6.67
User's input numbers are 4, 7, and 9.
['Kazakhstan', 'Russa', 'Korea']
{'4': 'Kazakhstan', '7': 'Russa', '9': 'Korea'}
Kazakhstan, Russa, Korea

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