The mean of 10 numbers is 9, then sum of these numbers will be__________________?
The mean of 10 numbers is 9, then sum of these numbers will be__________________?
A. 9
B. 0.9
C. 70
D 90
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The second moment about mean is _____?
The second moment about mean is _____?A. Variance
B. Mean
C. S.D.
D. ModeWhich of the following is a true statement for comparing the t distribution with standard normal ?
Which of the following is a true statement for comparing the t distribution with standard normal ?A. Greater the degree of freedom, the more the t-distribution resembles the standard normal distribution
B. The Normal Curve is symmetrical whereas the t-distribution are slightly skewed.
C. The proportion of area beyond a specific value of “t” is less than the proportion of normal curve
D. Non of theseIn inferential statistics, we study____________?
In inferential statistics, we study____________?A. the methods to make decisions about population based on sample results
B. how to make decisions about mean, median, or mode
C. how a sample is obtained from a population
D. None of the aboveCorrelation coefficient is__________?
Correlation coefficient is__________?A. Absolute measure
B. Relative measure
C. Both a and b
D. None of the aboveArithmetic Mean is___________affected by extreme values?
Arithmetic Mean is___________affected by extreme values?A. Not
B. Highly
C. Less
D. None of theseThe Spearman Rank-Correlation test requires that the______________?
The Spearman Rank-Correlation test requires that the______________?A. Data must be measured on the same scale
B. Data should be of ordinal scale at least
C. Data must be distribution at least approximately as a t-distribution
D. Data must be from two independent samples