Commerce · all questions

Business Statistics and Research Methods
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

1,153

Questions

22/58

Page

Pick an option on a question to see the right answer and solution.

Q421

For a continuous frequency distribution, range is defined as

Select an option to see the answer and solution.

Q422

The value of β2 can be:

Select an option to see the answer and solution.

Q423

In binomial distribution, if number oftrials (n) is infinitely large, the probability of success (p) of occurrence of an event is close to . . . . . . . . and probability of failure (q) of occurrence of an event close to . . . . . . . .

Select an option to see the answer and solution.

Q424

Since values of both the regression coefficients, bxy and byx are negative, the value of correlation r is

Select an option to see the answer and solution.

Q425

Arrange the following statements in sequence for applicability of Chi-square test.
1. Observations are recorded and samples are collected on a random basis.
2. Check whether all the members in the sample must be independent.
3. Check that no group contain items less than 10 otherwise regrouping needs to be done.
4. Check that are constraints are linear.

Select an option to see the answer and solution.

Q426

Assertion (A) The CLT is useful when examining returns for a stock or index because it simplifies many analysis procedures.
Reason (R) An appropriate sample size depends on the data available.

Select an option to see the answer and solution.

Q427

According to . . . . . . . ., "is a relatively large number of items be chosen at random from a group, such items are on average almost sure to have the characteristics of the group."

Select an option to see the answer and solution.

Q428

When coefficient of skewness in negative

Select an option to see the answer and solution.

Q429

If two variables, x and y, have a very strong linear relationship, then:

Select an option to see the answer and solution.

Q430

During one year the ratio of prices of two commodities is 3, whereas during the next year it is 2. For averaging these ratio-

Select an option to see the answer and solution.

Q431

The difference between the lower limit and upper limit of a classis known as . . . . . . . .

Select an option to see the answer and solution.

Q432

Sampling involves the sequence of stages. Which one of the following stages should come before the others?

Select an option to see the answer and solution.

Q433

In a Binomial Distribution, if 'n' is the number of trials and 'p' is the probability of success, then the mean value is given by:

Select an option to see the answer and solution.

Q434

The first moment about means is always:

Select an option to see the answer and solution.

Q435

Sampling is the process of study

Select an option to see the answer and solution.

Q436

Assertion (A) In regression analysis, the values of the dependent variable are random, but the values of the independent variable are fixed quantities without error and are chosen by the analyst.
Reason (R) Regression analysis provides value of the regressed variables (dependent) from the value of the regressor variables (independent variable).

Select an option to see the answer and solution.

Q437

The term 'external validity' is concerned with:

Select an option to see the answer and solution.

Q438

A good index number is one that satisfies

Select an option to see the answer and solution.

Q439

The following are the estimated regression equations for x and y variables:
x = 0.85y
y = 0.89x
With this information, the value of the coefficient of correlation would be:

Select an option to see the answer and solution.

Q440

The moment coefficient of skewness 'p₁' is equal to

Select an option to see the answer and solution.

Prev 20 21 22 23 24 Next