Q1061
Open questionWhich one of the following statistical measures is based on all observations?
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Business Statistics and Research Methods
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Q1062
Open questionSample is the representative of . . . . . . . .
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Q1063
Open questionWhich of the following is not a theoretical distribution of probability?
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Q1064
Open questionThe statistical study begins with collection of data and ends with
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Q1065
Open questionConsider the following statements:
1. Correlation analysis helps in determining the relationship between two or more variables it does not tell us anything about the cause and effect relationship
2. The ratio of explained variation to the 1 total variation is called the coefficient of correlation
3. Pearsonian coefficient always assumes linear relationship and is unduly effected by the extreme items
Which of the above statements is/are correct?
1. Correlation analysis helps in determining the relationship between two or more variables it does not tell us anything about the cause and effect relationship
2. The ratio of explained variation to the 1 total variation is called the coefficient of correlation
3. Pearsonian coefficient always assumes linear relationship and is unduly effected by the extreme items
Which of the above statements is/are correct?
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Q1066
Open questionMatch the following.
| List-I (In Case of Correlation) | List-II (Value of 'r') |
| a. Perfect positive | 1. 0 |
| b. Perfect negative | 2. +1 |
| c. No correlation | 3. -1 |
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Q1067
Open questionSample proportion taken from a population is equal to
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Q1068
Open questionOne of the following is not a method of studying dispersion:
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Q1069
Open questionWhich one of the following is not a measure of disperison?
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Q1070
Open questionWhich of the following can be calculated for grouped data with open-ended classes?
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Q1071
Open questionWhich average is most affected by extreme values?
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Q1072
Open questionWhich of the following approach of probability assumes 'degree of belief'?
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Q1073
Open questionA commuter drives 10 miles on first day at a speed of 60 km/hour, the second day at 15 km/hour and third day 10 km/hour. The mean speed of the commuter is
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Q1074
Open questionThe mode of 2, 4, 2, 3, 1 is
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Q1075
Open questionIf variance is 144, then the standard deviation will be
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Q1076
Open questionWhen a population is heterogeneous, it is divided into groups, so that there is homogeneity within the group and heterogeneity between the groups, and some items are selected at random from each group. It is a case of:
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Q1077
Open questionIf all values of a variable are multiplied by a given number, which one of the following will NOT be effected?
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Q1078
Open questionIf A B and B A, then:
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Q1079
Open questionWhich of the following is a causes of correlation?
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Q1080
Open questionMatch the items of List-I and List-II and indicate the correct matching of the items.
| List-I | List-II |
| a. | 1. Measurement for Kurtosis |
| b. | 2. Calculated value of F ratio |
| c. | 3. Statistical approach to find out the size of sample |
| d. | 4. Calculated z value of mean differences |
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