The following dot plot represents the litter size of a random sample of labrador retrievers. Which of the following statements are true about this random sample?

Only four of the litters had less than six puppies.
Most of the litters in the sample had seven puppies.
Approximately of the litters in the sample had at least ten puppies.
Six of the litters had eight puppies.
There are thirty labrador retriever litters represented in the sample.
About 29% of the litter had nine puppies.