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# The table gives the frequency of grades achieved by students in an IB school a Calculate the mean grade. b What percentage of students achieved a grade 4 or 57. c Write down the modal grade. Grade Frequency 1 1 2 6 3 19 4 34 5 32 6 18 7 10

The table gives the frequency of grades achieved by students in an IB school

a Calculate the mean grade.

b What percentage of students achieved a grade 4 or 57.

c Write down the modal grade.

Grade | Frequency |

1 | 1 |

2 | 6 |

3 | 19 |

4 | 34 |

5 | 32 |

6 | 18 |

7 | 10 |

**Related Book For**

## Elementary Statistics

11th edition

Authors: Robert R. Johnson, Patricia J. Kuby

ISBN: 978-0538733502

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