# CA 2 Exam Revison: Question Preview (ID: 17762)

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A class has 10 boys and 12 girls, if one is picked randomly, what is the probability it's a boy? |
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a) 45.45% | b) 54.54% | c) 50% | d) 10% | |

Rolling a dice, what is the probability of rolling a 3? |
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a) 20% | b) 16.6% | c) 33.33% | d) 50% | |

Find the mean of the following numbers, 1, 2, 4, 8, 10, 2, 5, 6, 3, 2. |
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a) 3.4 | b) 3.9 | c) 4.7 | d) 4.3 | |

Find the mode of the following numbers, 1, 2, 4, 8, 10, 2, 5, 6, 3, 2. |
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a) 10 | b) 2 | c) 1 | d) 3 | |

Find the median of the following numbers, 1, 2, 4, 8, 10, 2, 5, 6, 3, 2. |
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a) 3.5 | b) 2 | c) 3 | d) 4 | |

Rooms listed from 1-10, what is the probability of getting a prime number room? |
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a) 30% | b) 20% | c) 40% | d) 50% | |

Rooms listed from 1-10, what is the probability of getting a even number room? |
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a) 50% | b) 40% | c) 30% | d) 20% | |

Rooms listed from 1-10, what is the probability of getting an odd number room? |
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a) 10% | b) 15% | c) 80% | d) 50% | |

Rooms listed from 1-10, what is the probability of getting a even above 6 number room? |
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a) 10% | b) 20% | c) 30% | d) 40% | |

Rooms listed from 1-10, what is the probability of getting an odd less than 6 number room? |
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a) 70% | b) 20% | c) 30% | d) 100% | |

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