IMDb ratings typically look like this:
Ratings: 7.1/10 from 44,920 users
The user count is actually a link to a detailed demographic page. Click on the link and check out the second chart on the page that appears. You’ll see a breakdown showing rankings broken down by age range/gender. Find your demographic in the chart and you’ll get a sense of what people of your age/gender thought of the movie. Sometimes, those opinions vary wildly.
Personally, I find having this information makes IMDb much more useful.