Q401
Open questionWhich of the following is not a restricted random sampling technique?
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Q402
Open questionIf 'p', 'g' and 'n' are probability of success, failure and number of trials respectively in a Binomial Distribution, what is its Standard Deviation?
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Q403
Open questionArrange the following steps in sequence in constructing a frequency distribution.
1. The classes should be clearly defined and each observations should be included in only one of class interval.
2. Check that the number of classes should neither be too large nor too small.
3. Check that all class intervals are of same width.
4. List the value of the variable in different class interval.
Select the correct answer using the options given below
1. The classes should be clearly defined and each observations should be included in only one of class interval.
2. Check that the number of classes should neither be too large nor too small.
3. Check that all class intervals are of same width.
4. List the value of the variable in different class interval.
Select the correct answer using the options given below
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Q404
Open questionIn calculating the regression equation linking two variables, the standard formulae for the regression coefficients are given in terms of X and Y. Which of the following is true?
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Q405
Open questionIn a questionnaire, how many answers should be there for simple alternative questions?
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Q406
Open questionThe null hypothesis of Kruskal-Wallis test is that the mean ranks of the groups are the same. The expected mean rank depends upon
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Q407
Open questionFind the value of x2 (chi-square) for the following information.
| Class | A | B | C | D | E |
| Observed Frequency | 8 | 29 | 44 | 15 | 4 |
| Expected Frequency | 7 | 24 | 38 | 24 | 7 |
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Q408
Open questionThe portion of the total area covered in a normal curve under is
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Q409
Open questionNot rejecting null hypothesis, when it is infact false is
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Q410
Open questionChoose the most appropriate answer:
First hand data collected afresh for the purpose of statistical investigation is called:
First hand data collected afresh for the purpose of statistical investigation is called:
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Q411
Open questionIn the Spearman's rank correlation coefficient, when the ranks are equal, the formula is
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Q412
Open questionThe formula for percentile range (P.R.) is
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Q413
Open questionFor a normal distribution
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Q414
Open questionThe degree to which numerical data tend to spread about an average value called:
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Q415
Open questionRank correlation coefficient is obtained by following the formula.
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Q416
Open questionMatch the following.
| List-I | List-II |
| a. Primary data | 1. Representation of data in form of picture |
| b. Secondary data | 2. The totality of things under consideration |
| c. Pictogram | 3. Data collected by the investigator himself |
| d. Population | 4. Data used by the investigator, which has already been collected by others |
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Q417
Open questionFor testing of hypothesis:
Ho: Mi = M2
Ha: Mi < M2
What should be the critical value of Z at 5% level of significance when size of sample is more than 30 is:
Ho: Mi = M2
Ha: Mi < M2
What should be the critical value of Z at 5% level of significance when size of sample is more than 30 is:
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Q418
Open questionCricketer 'A' scores on an average 40 runs with a standard deviation of 5. Scores of players 'B' and 'C', on an average, are 75 and 90 with standard deviations 10 and 18 respectively. Arrange the players in the descending order of consistency:
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Q419
Open questionIn least squares regression, which of the following is not a required assumption about the error term E?
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Q420
Open questionIn a unimodal and symmetric distribution, the relationship between average is like this.
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