# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 201 - 204 of 472

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## Question number: 201

» Probability » Probability Distributions » Negative Binomial

### Question

Which of the following statement is/are correct?

### Choices

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

a. | Pascal distribution is a special case of negative binomial distribution on with parameter and , when k is a positive integer. | |

b. | Pascal distribution is a special case of Normal distribution with parameter , when | |

c. | The pdf of Pascal distribution is symmetric. | |

d. | All of the above |

## Question number: 202

» Probability » Classical and Axiomatic Definitions

### Question

The following below shows the number of heads appearing when 8 coins are tossed.

x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |

f | 1 | 9 | 26 | 59 | 72 | 52 | 26 | 7 | 1 |

The probability of getting heads less than 4 is?

### Choices

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

a. | 0.21 | |

b. | 0.37 | |

c. | 0.27 | |

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

## Question number: 203

» Probability » Classical and Axiomatic Definitions

### Question

If Ω is a sample space the P (Ω) =________ and can be explained by ________ perspective of probability. The correct choice for filling the blanks is?

### Choices

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

a. | 1 and classical | |

b. | 1 and empirical | |

c. | 0 and classical | |

d. | 1 and axiomatic |

## Question number: 204

» Probability » Discrete and Continuous Random Variables

### Question

Which of the following cannot be the example of exponential random variable?

### Choices

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

a. | The distance we travel along a road until we find the next pothole. | |

b. | Number of pizza a person eats in a month. | |

c. | The time until the next jobs arrives at a database server. | |

d. | All of the above |