Question

a coin is tossed 1000 times with the following frequencies head 455 tail 545 compute the probability for each event

Answer 1

p(tail) = 545/1000
= 0.545

p(head) = 455/1000
= 0.455

I hope that it will help you.
Thank you and a good morning

Answer 2

$<b>Heya Mate$

$\underline\bold{Step-by-step \: explanation}$

No. of events took place = 1000

P(Getting Heads)= 455/1000
After cancellation= 91/200

P(Getting Tails)= 545/1000
After cancellation= 109/200

P(Getting heads)= $\boxed{91/200}$
P(Getting tails)= $\boxed{109/200}$

In percentage= $\boxed{45.5%}$
$\boxed{54.5%}$

Hope it helps you
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