1 The third quartile, denoted by Q 3, is the median of the upper half of the data set. 2  This means that about 75% of the numbers in the data set lie below Q 3 and about 25% lie above Q 3.
The Visa Waiver Program is a program that enables citizens of 35 participating countries to travel to the United States for stays of 90 days or less without a visa.t is not required to update your new travel details in ESTA, it is optional. ESTA approval is valid for two years from the date of issue. If you have lost your application number you are still eligible to enter the US.
Visa Validity. Tourist visas are valid for 30 days, your arrival day is counted as your first day, and you must leave the country on the 30th day. Tourist visas may only be extended due to natural disaster, illness or accident, and cannot be transferred to another type of visa.ourist and Transit Visa on Arrival is available for nationals of these 52 countries and territories. A transit visa for up to 7 (seven) days costs US $10.00, and a tourist visa for up to 30 (thirty) days costs US $25.00.