Commerce · all questions

Business Statistics and Research Methods
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Q901

A shopkeeper wants to keep a stock of shoes. The most appropriate mean for that would be

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Q902

Mean deviation computed from a set of data is always:

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Q903

The arrangement of data in rows and columns is called:

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Q904

Which of the following is an incomplete experimental research design?

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Q905

Standard deviation of a binomial distribution is equal to

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Q906

The coefficient of correlation between two series x and y is found to be 0.80. if all the vallues of x and y are reduced by 50%, the correlation coefficient will be

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Q907

500 students were selected at random out of which 190 were married. 90 passed out of married students and 110 failed out of unmarried students, the number of passed unmarried students would be

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Q908

Assertion (A) The value, of coefficient of correlation shall always lie between -1 < r < +1.
Reason (R) When the value or r = +1 the correlation between the variable is perfect and positive and when r = -1, correlation is said to be perfect and negative.

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Q909

In a Binomial Distribution, if p, q and n are probability of success, failure and number of trials respectively then given by:

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Q910

Statistical forecasting is done:

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Q911

. . . . . . . . technique is employed when the complete and up to date list of the sampling units is available in some systematic order.

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Q912

Median - Mode = 2 (Mean - . . . . . . . . )

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Q913

Consider the following statements.
Assertion (A): If regression coefficient of X on Y is greater than one, regression coefficient of Y on X must be less than one.
Reason (R): The geometric mean between two regression coefficientsis the co-efficient of correlation.
On the basis of the above, choose the appropriate answer:

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Q914

The conclusion of the law of inertia of large numbers

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Q915

Which of the following are the graphical representation of data?

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Q916

Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of

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Q917

A coin is biased so that its chances of landing Head is 21.3. If the coin is flipped 3 times, the probability that the first 2 flips are heads and the 3^rd flip is a tail is:

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Q918

When large weights have to be given to small items and small weights to large items the most appropriate mean for its measurement is?

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Q919

The frequencies in the cumulative frequency distribution are placed

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Q920

The sum total of the values of two variables 'X' and 'Y' is equal for all the observations. The value of the coefficient of correlation between 'X' and 'Y' is:

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