1 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. 4  Average pickup times vary by city, time, and amount of business.
Subtract 90-23 and you should get 67. Therefore, 67 is your range. <b>Range:</b> the range of a data set is the difference between the largest and smallest number in your set of data. To find it, just subtract the smallest number from the largest number in your data set. That is now going to be your range.
The Range Rule. The range rule tells us that the standard deviation of a sample is approximately equal to one fourth of the range of the data. In other words s = (Maximum â Minimum)/4. This is a very straightforward formula to use, and should only be used as a very rough estimate of the standard deviation.uppose we start with the data values of 12, 12, 14, 15, 16, 18, 18, 20, 20, 25. These values have mean of 17 and standard deviation of about 4.1. If instead we first calculate the range of our data as 25 â 12 = 13, and then divide this number by four we have our estimate of the standard deviation as 13/4 = 3.25.