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July 23, 2014

July 23, 2014

Posted by **Kevin** on Friday, June 4, 2010 at 2:08pm.

2) Suppose you flip a penny, a nickel,a dime and a quarter. What is the probability of getting heads on the penny and nickel and dime and tails on the quarter?

Please show steps for the solutions.

Thank you.

- Probability -
**Damon**, Friday, June 4, 2010 at 8:52pmp tails in 1 toss = .5

binomial distribution

p = .5

number of trials , n , = 6

number of successes = 2,3,4,5,6

number of failures = 0,1

so easier to work it backwards

what is the probability of 0 or 1 heads

p is still .5

p(0 heads) = C(6,0) (.5^0)(.5)^6 = .0156

p(1 heads) = C(6,1)(.5^1)(.5)^5 = 3*.03125 = .09375

sum = about .11

1 - .11 = .89

- Probability -
**Damon**, Friday, June 4, 2010 at 8:55pmSuppose you flip a penny, a nickel,a dime and a quarter. What is the probability of getting heads on the penny and nickel and dime and tails on the quarter?

-------------------

independent experiments

1/2*1/2*1/2*1/2

- Probability -
**Anonymous**, Sunday, December 18, 2011 at 1:11ama dime rolled 5 times find the probability of getting 4 exactly 5 times

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