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,
Launching the Falcon Heavy and Falcon 9, the rocket SpaceX currently used to launch its Dragon capsule to the International Space Station, costs $10,000 per pound â the reusable rocket would cost only $10 per pound. âThat, however, requires a very high flight rate, just like aircraft,â Musk says.c) SpaceX. Such a rocket, according to Musk, will be capable of being fully ready for launch again 24 hours tops after it last went into orbit, and cost a hundred fold less than it does today to put cargo into space.