Tableau 201: How to Make a What-If Analysis Using Parameters. 17. Tableau 201: How to Make a What-If Analysis Using Parameters. Parameters are one of the most powerful tools available in Tableau for exploring your data and providing interactivity to your end users. The best way to think of parameters is that they act as wildcards.
The United States has invested almost $78 billion in the International Space Station (ISS or Station) over the last 21 years, and going forward, NASA plans to spend between $3 and $4 billion annually to maintain and operate the Station, including transportation for crew and cargo.1 In a May 2014 report,
Typical launch costs today are $10,000 US Dollars (USD) to $25,000 USD per kilogram ($4,500 to $11,000 USD per pound), though some countries subsidize space launches, occasionally reducing cost as low as $4,000 USD per kilogram ($1,800 USD per pound).or a typical five tonne communications satellite, this adds up to between $20 million USD and $125 million USD. For launching the Space Shuttle, which weighs about 2,000 tonnes, the cost is about $800 million USD, or nearly a billion dollars.