Math, asked by sssssssssssssssss52, 1 year ago

Two unbiased coins are tossed simultaneously find the probability of getting : (i) at least one head(ii) at most one head

Answers

Answered by zeel47

at least one head 3/4

and at most one head is 3/4

sssssssssssssssss52: I think at most = 1/2

zeel47: no as the outcomes will be HT , TH, TT

sssssssssssssssss52: At most means jayada se jayada

sssssssssssssssss52: jayada se jayada ek head = HT,TH

zeel47: at most means highest 1 matlab 1 chalega or 1 se bhi chalega

sssssssssssssssss52: Yes you are right TT also add to the favorable outcomes

sssssssssssssssss52: Thanks

zeel47: last me 1 se kam bhi chalega

zeel47: welcome

sssssssssssssssss52: Ya thanks

Answered by yadavsv09

Answer:

Given :

Two unbiased coins are tossed simultaneously.

To find :

At least one head

No head

Solution :

When two unbiased coins are tossed, then its total outcomes :-

Total number of outcomes = HH, TT, HT, TH

As we know that⠀⠀

$\bullet\:{\boxed{\pmb{\frak{\purple{Probability =\dfrac{ Favourable\: outcomes}{Total\:number\:of\: outcomes}}}}}}$

As per given condition in the question

Probability of getting at least one head

★ Number of favourable outcomes = HH, HT, TH

★ Total number of outcomes = 4

Probability of getting at least one head = 3/4

━━━━━━━━━━━━━━━━━━━━━━━━

Probability of getting no heads

★ Number of favourable outcome = TT

★ Total number of outcomes = 4

Probability of getting no heads = 1/4

━━━━━━━━━━━━━━━━━━━━━━━━

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