Which is better? Short-term v. long-term renter v. stock market

[Stacey H.]

Is there any data about what's the better investment route? Short-term rental, long-term renter, or just keeping money in the stock market. I'm seeing the average return in the stock market is about 10%, which beats the rental options, however, that's all market-dependent. I'm planning on retiring in about 15 years. Perhaps it's best to diversify and do a little of each?