# Probability [ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)]: Questions 1 - 4 of 199

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## Question 1

### Question

MCQ▾Suppose that has the exponential distribution with rate parameter . Then which of the following statement is/are correct regarding it?

### Choices

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

a. | has the geometric distributions on with success parameter . | |

b. | has the geometric distributions on with success parameter . | |

c. | Both a. and b. are correct | |

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

## Question 2

### Question

MCQ▾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 3

### Question

MCQ▾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 4

### Question

MCQ▾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 |