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Mathematics
OpenStudy (anonymous):

We toss 3 coins 100,000 times. How many times do we expect to see "Exactly 1 Head" appearing? A. 12,500 B. 37,500 C. 3,750 D. 50,000

OpenStudy (anonymous):

B

OpenStudy (anonymous):

Think of it like this. Say 0 represents tails, and 1 represents heads (this is arbitrary). The possible combinations of any flip of the 3 coins are: 000 100 010 001 101 111 110 011 How many contain exactly 1 head? 100 010 001 Which is 3/8. 3/8*100,000 = 37,500 as Agent_Sniffle said.

OpenStudy (anonymous):

@fewscrewsmissing Thank you for pointing that out...Honestly, I kinda guessed. xD Like I said in the chat..I dun feel so good. :/

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