This is a chart of useful numbers, rates, and conversions to help with estimation style questions for interviewers. Please feel free to contribute numbers you've found useful or update numbers that have gone out of date.
| Populations | About | Actual | Updated |
|---|---|---|---|
| World | 7B | 7.4B | 6/28/16 |
| NYC | 8M | 8.40M | 6/28/16 |
| US | 300M | 319M | 6/28/16 |
| China | 1B | 1.357B | 6/28/16 |
| India | 1B | 1.252B | 6/28/16 |
| San Francisco | 1M | 837K | 6/28/16 |
| Houston | 2M | 2.196M | 6/28/16 |
| New Orleans | 400K | 378K | 6/28/16 |
| Internet Users | 3B | - | 6/28/16 |
| Small Metro | <1M | - | 6/28/16 |
| Medium Metro | 1M - 2M | - | 6/28/16 |
| Large Metro | 2M - 3.5M | - | 6/28/16 |
| XLarge Metro | >3.5M | - | /6/28/16 |
XLarge metro's
3,500,000 over
NYC, Los Angeles,Chicago, Dallas-Ft.Worth, Boston, Philadephia, Houston, San Francisco Bay, Atlanta, Miami-Ft.lauderdale, Phoenix-Scottsdale, Detroit, Washington D.C.
Large
2,000,000-3,500,000
Seattle-Tacoma, Denver-Boulder, Tampa St.Petersburgh, Cleveland, Pittsburgh, San Antonio, Orlando, Baltimore, Kansas City, Cincinatti, San Diego, St. Louis, Minneapolis-St. Paul, Sacramento, Portland, Newark.
Medium
1,000,000 - 2,000,000
Las Vegas,Indianapolis, Charlotte, Austin, Nashville, Columbus, Buffalo, Memphis, Milwaukee, Jacksonville, Oklahoma City, Salt lake City, Raleigh-Durham, Louisville, Rochester, Tucson, New Orleans, Virginia Beach-Norfolk, Providence, Birmingham, Richmond, Hartford.
Small
1,000,000 and less.
Omaha, Albuquerque, El Paso, Tulsa, Baton Rouge, Honolulu, Fresno, Grand Rapids, McAllen-Edinburg, TX, Dayton, Greensboro, Little Rock, Akron, Toledo, Knoxville, Scranton-Wilkes-Barre, Boise, Wichita.
| Data | About | Actual | Updated |
|---|---|---|---|
| HD Img | 16MB | - | 6/28/16 |
| Img on Imgur | 4MB | - | 6/28/16 |
| 1min HD Video | 1GB | - | 6/28/16 |
| 5,000 SMS Msg | 1MB | - | 6/28/16 |
| Rates and Percents | About | Actual | Updated | Source |
|---|---|---|---|---|
| Registered users to use service monthly | 30% | - | 6/28/16 | - |
| Registered users to use service daily | 10% | - | 6/28/16 | - |
| Maximum number of users to use concurently | 10% | - | 6/28/16 | - |
| Prices | About | Min | Max | Updated |
|---|---|---|---|---|
| TV Ad per 30sec | $300K | - | - | 6/28/16 |
| PPC Ad | $0.30 | $0.05 | $50 | 6/28/16 |
Notes on PPC
PPC can vary base on the size, type, location, market size, competition, etc. It can easily range from $0.05 to $85. More competitive markets generally have much higher prices. While the bulk of clicks will earn in the $0.05-$0.60 range the most expensive clicks can be major revenue drivers.