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The mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient of variation
60.4%
48.3%
27.8%
35.7%
In a week the prices of a bag of rice were 350,280,340,290,320, 310,300.
The range is
70
80
100
60
A numerical value used as a summary measure for a sample, such as sample mean, is known as a
population mean
sample parameter
sample statistic
population parameter
In statistics, a population consists of
All subjects or objects whose characteristics are being studied
None of the above
All People living in a country
All People living in the are under study
Formula written as quartile deviation divided by sum of third and first quartile is used to calculate
coefficient of quartiles
co-efficient of quartile deviation
coefficient of inter quartiles
coefficient of central tendency
A researcher selects a probability sample of 100 out of the totalpopulation.
It is
A systematic sample
A cluster sample
A stratified sample
A random sample
The middle value of an ordered array of numbers is the
Mean
MidPoint
Mode
median
1st quartile is also known as
median
geometric mean
lower quartile
upper quartile
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