71. In small samples, we use relatively . . . . . . . . confidence intervals as the results of small samples usually vary widely from sample to sample.
72. Calculation of arithmetic mean by short-cut and step-deviation method is based on assumed mean, which is taken/selected from
73. Match List-I with List-II:
List-I
List-II
a. $$j = \frac{{\overline X - {M_Q}}}{\sigma }$$
1. Kelly's coefficient of skewness
b. $$j = \frac{{{Q_3} - {Q_1} - 2{M_Q}}}{{{Q_3} - {Q_1}}}$$
2. Bowley's measure of skewness
c. $$j = \frac{{{P_{90}} + {P_{10}} - 2{P_{50}}}}{{{P_{90}} - {P_{10}}}}$$
3. Karl Pearson's coefficient of skewness
Choose the correct option from those given below:
| List-I | List-II |
| a. $$j = \frac{{\overline X - {M_Q}}}{\sigma }$$ | 1. Kelly's coefficient of skewness |
| b. $$j = \frac{{{Q_3} - {Q_1} - 2{M_Q}}}{{{Q_3} - {Q_1}}}$$ | 2. Bowley's measure of skewness |
| c. $$j = \frac{{{P_{90}} + {P_{10}} - 2{P_{50}}}}{{{P_{90}} - {P_{10}}}}$$ | 3. Karl Pearson's coefficient of skewness |
74. Which of the following relation is correct?
75. For the discrete variables, more suitable class intervals are
76. Match the items in List-I with items in List-II.
List-I
List-II
a. Level of significance
1. Sample mean is equal to population mean
b. Standard deviation of sampling distribution
2. Parameters
c. Numerical value that describes the characteristics of the population
3. Type-I error
d. Normally-distributed population
4. Standard error
| List-I | List-II |
| a. Level of significance | 1. Sample mean is equal to population mean |
| b. Standard deviation of sampling distribution | 2. Parameters |
| c. Numerical value that describes the characteristics of the population | 3. Type-I error |
| d. Normally-distributed population | 4. Standard error |
77. Match the following.
List-I
List-II
a. Fisher
1. Inverse probability
b. Karl Pearson
2. Normal distribution
c. Thomas Baye's
3. Correlation coefficient
d. Kari Gaus
4. Index number
| List-I | List-II |
| a. Fisher | 1. Inverse probability |
| b. Karl Pearson | 2. Normal distribution |
| c. Thomas Baye's | 3. Correlation coefficient |
| d. Kari Gaus | 4. Index number |
78. State the arithmetic mean of the following distribution:
X (Series) :
145
155
165
175
F (Frequency) :
10
12
15
10
| X (Series) : | 145 | 155 | 165 | 175 |
| F (Frequency) : | 10 | 12 | 15 | 10 |
79. When a data series is arranged in ascending or descending order, the value which comes in the middle of the series is called?
80. Range of the coefficient of correlation is:
Read More Section(Business Statistics and Research Methods)
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- Business Statistics and Research Methods - Section 1
- Business Statistics and Research Methods - Section 2
- Business Statistics and Research Methods - Section 3
- Business Statistics and Research Methods - Section 5
- Business Statistics and Research Methods - Section 6
- Business Statistics and Research Methods - Section 7
- Business Statistics and Research Methods - Section 8
- Business Statistics and Research Methods - Section 9
- Business Statistics and Research Methods - Section 10
- Business Statistics and Research Methods - Section 11
- Business Statistics and Research Methods - Section 12