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

56/58

Page

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

Q1101

Which of the following is an absolute measure of dispersion?

Select an option to see the answer and solution.

Q1102

If both the regression coefficient of two series are negative, the coefficient of correlation should be

Select an option to see the answer and solution.

Q1103

Which one of the following statement is false regarding normal distribution?

Select an option to see the answer and solution.

Q1104

Geometric mean of 04 and 09 will be-

Select an option to see the answer and solution.

Q1105

Which of these must always be avoided for a technical report?

Select an option to see the answer and solution.

Q1106

The correlation coefficient of Karl Pearson is denoted by

Select an option to see the answer and solution.

Q1107

For calculating posterior probabilities (conditional probabilities under statistical dependence), the following information is available:-
(1) Conditional probabilities
(2) original probability estimates (prior-probabilities) of mutually exclusive and collectively exhaustive events
(3) Arbitrary event with probability ≠ 0 and for which conditional probabilities are also known
(4) Joint probabilities of prior probability and conditional probability
Given the information that the arbitrary event has occurred, arrange the above information in a sequence of their requirement as per Baye's Theorem

Select an option to see the answer and solution.

Q1108

The expected value of a random variable is the:

Select an option to see the answer and solution.

Q1109

In a Poisson probability distribution:

Select an option to see the answer and solution.

Q1110

Standard error of estimate is obtained by the following formula.

Select an option to see the answer and solution.

Q1111

Which of the following steps would be included in hypothesis testing?
1. State the null and alternative hypothesis.
2. Set the significance level before the research study.
3. Eliminate all outliers.
4. Obtain the probability value using a computer program such as SPSS.
5. Compare the probability value to the significance level and make the statistical decision.

Select an option to see the answer and solution.

Q1112

Which one of the following is not the correct property of normal distribution?

Select an option to see the answer and solution.

Q1113

While calculating which mean the next year's value is included but the previous value is not omitted?

Select an option to see the answer and solution.

Q1114

Probable error is-

Select an option to see the answer and solution.

Q1115

Which of the following can be reduced by proper interviewer training?

Select an option to see the answer and solution.

Q1116

The price index that uses base year quantities as weights is called

Select an option to see the answer and solution.

Q1117

E(x + y) = ?

Select an option to see the answer and solution.

Q1118

Which one of the following index number is based on geometric mean?

Select an option to see the answer and solution.

Q1119

All the properties of order, interval and zero origin are simultaneously possessed by:

Select an option to see the answer and solution.

Q1120

Arrange the following steps in sequence in constructing histogram.
1. Convert frequency table into equal class interval.
2. Check that class intervals are shown on X-axis and frequencies on the Y-axis.
3. Check that height of the rectangle is proportional to the respective frequency of grouped data.
4. Check that width of the rectangle represent the class interval.
5. Each rectangle is then joined.
Select the correct answer using the options given below

Select an option to see the answer and solution.

Prev 54 55 56 57 58 Next