statistics/questions.rst
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     1 Objective Questions
       
     2 -------------------
       
     3 
       
     4 .. A mininum of 8 questions here (along with answers)
       
     5 
       
     6 1. What is the function for calculating sum of a list?
       
     7    
       
     8    sum
       
     9 
       
    10 2. Calcutate the mean of the given list?
       
    11    
       
    12    student_marks=[74,78,56,87,91,82]
       
    13    
       
    14    mean(student_marks) 
       
    15 
       
    16 
       
    17 3. Given a two dimensional list,::
       
    18    two_dimensional_list=[[3,5,8,2,1],[4,3,6,2,1]]
       
    19    
       
    20    how do we calculate the mean  of each row?
       
    21    
       
    22 
       
    23    mean(two_dimensinal_list,1)
       
    24 
       
    25 4. What is the function for calculating standard deviation of a list?
       
    26 
       
    27    std
       
    28 
       
    29 5. Calcutate the median of the given list?
       
    30    
       
    31    student_marks=[74,78,56,87,91,82]
       
    32 
       
    33    median(age_list)
       
    34 
       
    35 6. How do you calculate median along the columns of two dimensional array?
       
    36        
       
    37     median(two_dimensional_list,0)
       
    38        
       
    39    
       
    40 7. What is the name of the function to load text from an external file? 
       
    41 
       
    42    loadtxt
       
    43 
       
    44 8. I have a file with 6 columns but I wish to load only text in column 2,3,4,5. How do I specify that?
       
    45 
       
    46    Using the parameter usecols=(2,3,4,5)
       
    47 
       
    48 Larger Questions
       
    49 ----------------
       
    50 
       
    51 .. A minimum of 2 questions here (along with answers)
       
    52 
       
    53 1. Question 1
       
    54 2. Question 2