Business Statistics - Study Mode

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[#296] Match the following List-I (Outcome State) List-II (Explanation) a. Certainty 1. Multiple outcomes for each alternative can be identified, but there is no knowledge of the probability to be attached to each. b. Risk 2. Complete and accurate knowledge of the outcome of each alternative. There is only one outcome for each alternative. c. Uncertainty 3. Multiple possible outcomes of each alternative can be identified, and a probability of occurrence can be attached to each.

(A) a-1, b-2, c-3

(B) a-3, b-2, c-1

(C) a-2, b-3, c-1

(D) a-2, b-1, c-3

Correct Answer

[#297] $${chi ^2}$$ computed by

(A) $${chi ^2} = sum left[ {frac{{{{left( {O - E} ight)}^2}}}{E}} ight]$$

(B) $${chi ^2} = sum left( {frac{{O - E}}{N}} ight)$$

(C) $${chi ^2} = frac{{sum {{left( {O - E} ight)}^2}}}{E}$$

(D) $${chi ^2} = frac{{sum {{left( {E - O} ight)}^2}}}{E}$$

Correct Answer

[#298] Which statement is/are correct?

(A) The Hierarchical Database Model (HDBM) is applicable when the data in an organisation can be put down in the hierarchical or in terms of the levels, one after another

(B) The data model is shown by an arrangement of the blocks

(C) The Network Database Model (NDBM) deals with the set and the records

(D) All of the above

(E) If the compiler is deficient, the source code would be translated to the machine code which is not quick in processing

(F) If the source code is not portable, it needs to be changed to run on a new platform everytime which is an extra cost with no specific gain of any kind

(G) The source code is termed as portable when it runs as it is on different operating systems of different hardware and software vendors and when it is executable on different processors and compilers

(H) If the language is of a higher level, that is, far away from the machine readable from, then an efficient compiler is needed which would do the translation for the CPU processing

Correct Answer

(D) All of the above
(F) If the source code is not portable, it needs to be changed to run on a new platform everytime which is an extra cost with no specific gain of any kind

[#299] The initial implementation due to the technology limitation of distance was the departmental network popularly known as the

(A) Computer

(B) Local area network

(C) Network design

(D) Database network

Correct Answer

(B) Local area network

[#300] The advantages of sampling is

(A) Extensive study

(B) Intensive study

(C) Information in brief

(D) Non-destructive nature of certain tests

Correct Answer

(B) Intensive study