all ages

[Ashiuhto]

Please help me correct the following sentences.

1. In the right chart, we can see it’s important for teenagers and children to get plenty of sleep.
2. People of all ages must sleep for at least 7 to 8 hours a day.
3. But in the left chart, we find most people sleep less than 8 hours.

[BobK]

Please help me correct the following sentences.

1. In From the right-hand chart, we can see [that] it’s important for teenagers and children to get plenty of sleep. I would prefer to use 'that', but it's not essential.
2. People of all ages must sleep for at least 7 to 8 hours a day. But it'd sound more natural like this: '...need at least 7 to 8 hours' sleep [every day]'.
3. But in the left-hand chart, we find [that] most people sleep less than 8 hours.

In Br English we say 'right-hand', 'rightmost' (if there are more than two), or 'on the right'. I have a feeling that in Am English it's OK to say 'the right chart'...

b