SOLUTION: 1. A coin is tossed 9 times. a) How many different outcomes are possible? b) How many different outcomes have exactly 2 heads? c) How many different outcomes have at least 2 hea

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Question 356977: 1. A coin is tossed 9 times.
a) How many different outcomes are possible?
b) How many different outcomes have exactly 2 heads?
c) How many different outcomes have at least 2 heads ?
d) How many different outcomes have at most 5 heads?
2. A pianist plans to play 8 different pieces at a
recital. In how many ways can she arrange these pieces in the
program?
3. How many three-letter (Error: ’words’ is not defined
in this context; see position 1 of formula ’words” can
be made from the 10 letters ’)FGHIJKLMNO” if repetition of
letters:
(a) Is allowed?
(b) Is not allowed?
can you please explain to me why the answer is the answer?

Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
2. 8!=40320
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