Musk said she believed her brother would go through with the acquisition.
"If he says he's going to do it, I think he's going to do it," she said.
Musk told the Times that her family was used to taking risks.
She told the Times that a lot of people don't like taking risks because they don't know how to do it. No one has ever done it with us. Doesn't mean it's impossible.
After putting the deal on hold, Musk told the SEC on Friday that he wouldn't be buying the company.
They are going to take Musk to court to make him follow through.
The profile was published on Saturday, but it's not clear if Musk made the comments prior to the news that he had terminated the deal.
She is the youngest of three siblings. She foundedPassionFlix, a streaming service for romantic movies.