CA Foundation Maths, Statistics, Logic, and Reasoning: Questions 63 - 69 of 154
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Question number: 63
» Theoretical Distributions Binomial
Question
The important characteristic (s) of Bernoulli trials
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Trials are infinite |
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| b. | Each trial is associated with just two possible outcomes. |
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| c. | Trials are independent |
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| d. | Both b. and c. are correct |
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Question number: 64
» Theoretical Distributions Binomial
Question
For Poisson fitting to an observed frequency distribution,
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | We equate the Poisson parameter to the median of the distribution. |
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| b. | We equate the Poisson parameter to the mean of the frequency distribution. |
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| c. | We equate the Poisson parameter to the mode of the distribution. |
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| d. | All of the above |
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Question number: 65
» Statistical Description of Data » Diagrammatic Representation of Data
Question
In order to compare two or more related series, we consider
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Multiple bar chart or Grouped Bar Chart |
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| b. | Multiple bar chart |
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| c. | Grouped bar chart |
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| d. | None of the above |
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Question number: 66
» Statistical Description of Data » Frequency Distribution
Question
Relative frequency for a particular class
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Lies between 0 and 1, both inclusive |
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| b. | Lies between 0 and 1 |
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| c. | Lies between –1 to 1. |
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| d. | Lies between –1 and 0 |
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Question number: 67
Question
If the coefficient of correlation between two variables is –0.9, then the coefficient of determination is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 0.81 |
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| b. | 0.1 |
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| c. | 0.9 |
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| d. | 0.19 |
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Question number: 68
» Theoretical Distributions Binomial
Question
Poisson distribution may be
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Unimodal or Bimodal |
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| b. | Multi-modal. |
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| c. | Unimodal |
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| d. | Bimodal |
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Question number: 69
» Theoretical Distributions Binomial
Question
A binomial distribution is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Never symmetrical |
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| b. | Symmetrical when p = 0.5 |
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| c. | Never positively skewed |
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| d. | Never negatively skewed |
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