In statistics, the standard deviation (SD, also represented by the Greek letter sigma Ï or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.
How to Estimate Your Uber Fare. The fare you'll owe from the car service Uber will depend on various different factors such as city, distance, and type of car. You can use a few pieces of info to estimate it though.
Donât pay in cash. All fare payments are handled automatically by the Uber service and your credit card on file. If using the TAXI service, you can select the amount to be tipped through your Uber Payment Settings-the default is 20%.You do not need to tip the other Uber services, including UberX, but tips are appreciated. The Uber app will provide you with the phone number of your driver. 2  You can use this contact the driver if you have any special considerations. 3  If you need to cancel your reservation, you will be charged a $5-$10 fee if you cancel after five minutes.