# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 265 - 269 of 472

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## Question number: 265

» Probability » Discrete and Continuous Random Variables

### Question

Which of the following statement is Incorrect regarding a random variable?

### Choices

Choice (4) | Response | |
---|---|---|

a. | A random variable can be discrete as well as continuous. | |

b. | The height or weight of a randomly chosen individual from a population is a continuous random variable. | |

c. | The volume of fuel consumed by a bus on its route is a continuous random variable. | |

d. | Question does not provide sufficient data or is vague |

## Question number: 266

» Probability » Probability Distributions » Hypergeometric

### Question

In a bridge hand, the probability density function of the number of spades will be________.

### Choices

Choice (4) | Response | |
---|---|---|

a. |
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b. |
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c. |
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d. | None of the above |

## Question number: 267

» Probability » Probability Distributions » Geometric

### Question

In the diagram of a geometric distribution given below, the parameter of probability of success of each trail is________.

### Choices

Choice (4) | Response | |
---|---|---|

a. |
| |

b. |
| |

c. |
| |

d. | None of the above |

## Question number: 268

» Probability » Probability Distributions » Multinomial

### Question

If are independent Poisson random variables such that, then the conditional distribution of vector with will follow

### Choices

Choice (4) | Response | |
---|---|---|

a. |
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b. |
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c. |
| |

d. | Question does not provide sufficient data or is vague |

## Question number: 269

» Probability » Probability Distributions » Laplace

### Question

Which of the following statement is/are always correct regarding the probability density function of a Laplace distribution?

### Choices

Choice (4) | Response | |
---|---|---|

a. | It is concave upward on and on with a cusp at | |

b. | It is symmetric about | |

c. | It increases on and decreases on , with mode | |

d. | None of the above |