Measures of Central Tendency
The number of observations are 30 and the value of arithmetic mean is 15 then sum of all values is
15
450
200
45
450
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Around the central value of observations, the extent to which the values depart from normal distribution is classified asA. negative variation
B. positive variation
C. skewness
D. positive trailing
In the quartiles, the central tendency median to be measured must lie in
A. first quartile
B. second quartile
C. third quartile
D. four quartile
At a grocery store, the number of per day sold processed fruits cans in 15 days are 50, 70, 60, 40, 30, 20, 5, 150, 55, 75, 65, 45, 35, 25, 52 then the outliers in observations are
A. 50, 150
B. 5, 150
C. 25, 70
D. 150
The arithmetic mean is 25 and all the sum of observations is 350 then the number of observations are
A. 25
B. 70
C. 14
D. 75
The difference of mode and mean is equal to
A. 3(mean-median)
B. 2(mean-median)
C. 3(mean-mode)
D. 2(mode mean)
In a negative skewed distribution, the order of mean, median and mode is as
A. meanmode
B. mean>median>mode
C. mean
D. mean>median
If the mean of percentages, rates and ratios is to be calculated then the central tendency measure which must be used in this situation is
A. weighted arithmetic mean
B. paired arithmetic mean
C. non-paired arithmetic mean
D. square of arithmetic mean
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