Q501
Open questionIf E(x) is the mathematical expectation of the variable X and C is constant then E(CX) = ?
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Commerce · all questionsBusiness Statistics and Research Methods
Business Statistics and Research Methods
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Q502
Open questionStandard deviation can be expressed as
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Q503
Open questionBowley's Coefficient of skewness is calculated by following formula.
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Q504
Open questionWhich of the following test is used to test the significance of the coefficient of association?
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Q505
Open questionGiven the following tests
1. z-test
2. t-test
3. chi-square test
4. F Test
The concept of degrees of freedom is associated with:
1. z-test
2. t-test
3. chi-square test
4. F Test
The concept of degrees of freedom is associated with:
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Q506
Open questionIn the context of lies "statistics" is called:
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Q507
Open questionSorting the related facts into classes is called-
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Q508
Open questionThe chamber of commerce has arrived at a list of executives from the metropolitan area's top 50 firms to solicit their input for rejuvenating the centre city district. What kind of sampling method was used?
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Q509
Open questionHistogram is useful to determine graphically the value of:
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Q510
Open questionIn a student survey, 40% of the student are male and 80% are CA candidates. The probability that a student chosen at random is either female or a CA candidate is:
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Q511
Open question. . . . . . . . error arise due to chance difference between the members of population included in the sample and those not included.
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Q512
Open questionThe relationship between two variables can be expressed in
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Q513
Open question. . . . . . . . is a behavioural approach to assess risk using a number of possible return estimates to obtain a sense of the variability among outcomes.
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Q514
Open questionThe average height of 100 selected students is 168.8 cm and their coefficient of variation is 3.2%. What is the standard deviation of their height?
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Q515
Open question. . . . . . . . state that other things being equal, as the sample size increases, the result tends to be more reliable and accurate.
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Q516
Open questionThe number of times each score occurs is called . . . . . . . .
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Q517
Open questionThere will be only one regression line in case of two variables if
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Q518
Open questionWhen the quantitative and qualitative data are arranged according to a single feature, the tabulation is known as:
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Q519
Open questionIf A and B are two independent events in a sample group, then P (A and B) is equal to
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Q520
Open questionStatistical data are used for knowing about the progress in the
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