January 2006 - 6683 Statistics S1 - Mark scheme



Comparison of key skills specifications 2000/2002 with 2004 standardsX015461July 2004Issue 1

| | | |

|Question Number|Scheme |Marks |

| | | |

|1. (a) |Mode is 56 |B1 |

| | |(1) |

|(b) |[pic] |B1,B1,B1 |

| | |(3) |

|(c) |[pic] exact or awrt 49.4 | |

| | |B1 |

| |[pic] | |

| |[pic] awrt 14.6(5) or 14.9 | |

| | |M1A1ft |

| |[pic] awrt range -0.44 to -0.46 | |

| | | |

| |For negative skew; |A1 |

| |Mean ................
................

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