# There

There are 24 students in the class. On Friday, the math class is divided into two groups of 12 students. The table shows the results of pupil assessment in 2 groups. Three students in the 1st group had a worse grade than those in the 2nd group. The other students had the same evaluation. What is the arithmetic mean of the grades of all first-group students?

rating | number of students |
---|---|

1 | 2 |

2 | 3 |

3 | 6 |

4 | 1 |

5 | 0 |

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