CS1010 Lab 01

What is the correct file extension for C source files?

• .java

• .c

• .cpp

• .cfile

Which of the following is NOT a basic data type in C?

• integer

• real number

• character

• string

Consider the function foo().  What is the value of b at Line A?

• foo() causes an error.

  value of variable b cannot be determined

• b contains the value of 15

• b contains the value of 5

• b contains the value of 75

In a flowchart, which symbol is used to represent a decision point?

• diamond

• rectangle

• oval

• arrow

What function would calculate the weighted mean given a list L and weights W :

• • divide(sum(multiply(L, W)), W)

• • multiply(mean(L), mean(W))

• • divide(sum(multiply(L, W)), sum(W))

• • sum(divide(multiply(L, W), W))

Given the mathematical function for the variance of a list L :
Which function represents this operation?

• • mean(subtract(L, square(mean(L))))

• • sum(square(subtract(L, mean(L))))

• • divide(square(subtract(L, mean(L))), n)

• • mean(square(subtract(L, mean(L))))

For the operation of standardizing a list L, which function is correct?

• • divide(L, stddev(L))

• • subtract(L, mean(L))

• • divide(subtract(L, mean(L)), stddev(L))

• • divide(subtract(L, stddev(L)), mean(L))

How many bits minimally are needed to represent number 0-64?

• 5

• 6

• 7

• 8

Which of the following is not a data type in C?

• int

• short

• long

• real

What is the size of an int data type in C on a 32-bit system?

• 1 byte

• 4 bytes

• 16 bytes

• 32 bytes