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STA301 Quiz No.1 Shared by Zia

Question # 1 of 10
The sum of the deviations of the observations from their mean is:
• Maximum
• Minimum
• Zero
• Un-predicted
Question # 2 of 10
What is the median for the following data 1,1,2,2,5,5,7,7,7
• 1
• 2
• 5
• 7
Question # 3 of 10
Value of harmonic mean is less than
• Arithmetic mean
• Geometric mean
• Both Arithmetic mean & Geometric mean
• None of the above
Question # 4 of 10
The following data needed to answer questions 8 to 13. Numbers of errors on a test of English comprehension for ten individuals are 5, 10, 2, 0, 8, 12, 7, 6, 0, 9. The most frequent score is:
• 12
• 0
• 10
• 2
Question # 5 of 10
Sum of the absolute deviations of the values is least when deviations are taken from:
• Mean
• Median
• Mode
• G.M
Question # 6 of 10
Which of the following is a true statement about median
• It is always one of the data values
• It is influenced by extreme values
• Fifty percent of the observations are larger than median
• It is the middle value of the data values
Question # 7 of 10
A bell shaped distribution is also known as:
• Symmetrical
• Bimodal
• Skewed
• U shaped
Question # 8 of 10
Mid point is equal to:
• Half of the sum of upper class limit and lower class limit
• The difference between consecutive lower limits
• Total number of observations fall in a class
• All of these
Question # 9 of 10
The _________ is one of the most important graphical representation of a frequency distribution
• Histogram
• Polygon
• OGIVE
• Frequency Curve



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