# Probability-Discrete and Continuous Random Variables (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 1 - 4 of 5

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## Question number: 1

» 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 |

## Question number: 2

» Probability » Discrete and Continuous Random Variables

### Question

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 number: 3

» Probability » Discrete and Continuous Random Variables

### Question

Z is the distance traveled by a randomly chosen business consultant last year. Is the random variable Z discrete or continuous?

### Choices

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

a. | Continuous | |

b. | Sometime discrete sometime continuous | |

c. | Can’t say anything | |

d. | Discrete |

## Question number: 4

» Probability » Discrete and Continuous Random Variables

### Question

Z is the number of reading sessions a randomly chosen public library offers in their literacy program for kids. Is the random variable Z discrete or continuous?

### Choices

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

a. | Can’t say anything | |

b. | Discrete | |

c. | Sometime discrete sometime continuous | |

d. | Continuous |