Q321
Open questionWhich one is not the type of utility of information
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Management · all questionsBusiness Statistics
Business Statistics
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Q322
Open questionGiven
The above series is an example of
| X | Y |
| 5 | 37 |
| 7 | 31 |
| 10 | 20 |
| 15 | 15 |
| 20 | 10 |
| 28 | 5 |
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Q323
Open questionIn case of conditional probability, (A and B) =
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Q324
Open questionWhich of the following is/are tools of the decision support system?
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Q325
Open questionThe information technology choice is a
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Q326
Open questionIf both the regression coefficients are negative, the correlation coefficient would be
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Q327
Open questionThe DBMS is a
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Q328
Open questionIf all values of a variable are multiplied by a given number, which one of the following will not be affected?
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Q329
Open questionA company makes electric toys. The probability that an electric toy is defective is 0.01. What is the probability that a shipment of 300 toys will contain exactly 5 defectives?
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Q330
Open questionThe emperical formulae of ceritral measure of tendency is
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Q331
Open questionGiven
The above diagram expressed, which model of system?
The above diagram expressed, which model of system?
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Q332
Open questionSize of the binomial distribution depends on
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Q333
Open question160 heads and 240 tails resulted from 400 tosses of a coin. Find a 95% confidence interval for the probability of a head. Does this appear to be a fair coin?
[Hint p = , q = , n = 400
Expected frequency = np = 200
Standard error = = 10
Actual difference = 200 - 160 = 40
Difference is greater than 3 times standard error coin is unfair.]
[Hint p = , q = , n = 400
Expected frequency = np = 200
Standard error = = 10
Actual difference = 200 - 160 = 40
Difference is greater than 3 times standard error coin is unfair.]
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Q334
Open questionNetworks are used for
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Q335
Open questionMatch the items of List II with the items of List I and denote the correct matching.
| List-I | List-II |
| a. Testing the goodness of fit of a distribution | 1. Z-test |
| b. Testing the significance of the differences among the average performance of more than two sample groups | 2. Chi-square test |
| c. Testing the significance of the difference between the average performance of two sample groups (large sired) | 3. F-test |
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Q336
Open questionIf covariance of X and Y is 12.3. Variance of X is 16.4 and variance of Y is 13.8, then r will be
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Q337
Open questionWhich system is defined as a product made up of several applications set in orderly manner to produce a higher level information output different than the output of the application processing
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Q338
Open question"The concept of a control system model is applied to data processing where all the features are used in the programmes of the data processing." This system is a
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Q339
Open questionBinomial distribution is a discrete probability distribution which expresses probability of one set of dichotomous alternatives known as
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Q340
Open questionThe standard deviation of poisson distribution is (m = mean)
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