Shankar Vedantam

Fewer than 1 in 5 members of Congress are women. At Fortune 500 companies, fewer than 1 in 20 CEOs are women. And if you look at all the presidents of the United States through Barack Obama, what are the odds of having 44 presidents who are all men?

If men and women had an equal shot at the White House, the odds of this happening just by chance are about 1 in 18 trillion.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

DAVID GREENE, HOST:

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

DAVID GREENE, HOST:

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