# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 203 - 207 of 472

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## Question 203

### 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 |

## Question 204

### Question

MCQ▾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 |

## Question 205

### Question

MCQ▾A randomly chosen child repeatedly hits a bell. X is the length of time it takes to break it open. Is the random variable X discrete or continuous?

### Choices

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

a. | Discrete | |

b. | Sometime discrete sometime continuous | |

c. | can՚t say anything. | |

d. | Continuous |

## Question 206

### Question

MCQ▾If , then what will be the standard deviation of ?

### Choices

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

a. | 59.8 | |

b. | 261.2 | |

c. | 161.4 | |

d. | 120.5 |

## Question 207

### Question

MCQ▾Which of the following is skewness of a standardized Bernoulli distributed random variable which takes the value 1 with success probability of and the value 0 with failure probability of ?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |