Question
Which among the following is the most commonly used
central tendency?Solution
· Mean is regarded as the best of all the averages; it is obtained by adding all the observations and dividing by a total number of observations. It is affected very much by extreme values. · Mode is a value in a distribution that occurs most frequently. Mode is not at all affected by extreme values. · Median is the middlemost item that divides the group into two equal sides, one side comprising all the greater values and the other is with lesser values. A minute change in the series may bring a drastic change in median value. · A geometric mean is an average that shows the central tendency of a set of numbers by using the product of their values. It is based upon all the observations obtained from the population. · The harmonic mean is the reciprocal of the arithmetic mean of the reciprocals of the observations. The most important criteria for it are that none of the observations should be zero.
Statements:
Only wires are switches.
No wire is a board.
Only nuts are boards.
Conclusions:
I. All switches are...
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Statements: Some books are notebooks.
No notebooks is a pages.
Statement:
I) Some cricket are hockey
II) Some hockey are golf
III) All golf are game
IV) No game is chess
Conc...
Statements:
Only White are Grey
No Blue are Black
All Blue are White
Conclusion:
I. Some Blue can be Grey
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Statements: Some cubs are puppies.
No puppy is a calf.
All kittens are puppies.
Conclusions: I. At least some cubs are calves.
Statements:
Some files are folders.
No folders are plastics.
All plastics are bags.
Conclusions:
I. S...
Statements:
Some label is brand.
All brand is price.
No price is promotion.
Every promotion is package.
Conclusions:<...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...