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alisha [4.7K]
3 years ago
15

An unbiased coin is tossed 20 times find the probability that the coin lands heads exactly 11 times

Mathematics
1 answer:
alexgriva [62]3 years ago
7 0
Both the heads and tails will have a probability of 0.5 with a fair coin. ... TO find probability that foe the 7th toss head appears exactly 4 times.
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Prove the trig identity: (tanx/1+secx)+(1+secx/tanx)=2cscx
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(I think this will be helpful for you. if you can see the picture, it has more detail in it.)

7 0
3 years ago
How do I solve this? help please! xx
Anna35 [415]
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Present your answer like this:
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andrezito [222]

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644,995

644,996

664,997

664,998

664,999

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665,001

665,002

665,003

665,004

8 0
3 years ago
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