1 | initial version |

I am not sure about your exact question, does the following answer it ?

```
sage: arithmetic_mean(*dict(x).values())
1141/4
sage: arithmetic_mean(*dict(y[0]).values())
1141/4
```

2 | No.2 Revision |

I am not sure about your exact question, does the following answer it ?

```
sage: arithmetic_mean(*dict(x).values())
1141/4
sage: arithmetic_mean(*dict(y[0]).values())
1141/4
```

**EDIT** Here is a version using `zip`

(though it is not very natural):

```
sage: arithmetic_mean(*zip(*x)[1])
1141/4
sage: arithmetic_mean(*zip(*y[0])[1])
1141/4
```

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