14.Probability
easy

एक ऐसे परीक्षण पर विचार कीजिए जिसमें एक सिक्के को बार-बार तब तक उछालते रहते हैं जब तक उस पर चित्त प्रकट न हो जाए। इसकी प्रतिदर्श समष्टि का वर्णन कीजिए।

A

$S =\{ H , \,TH , \,TTH , \,TTTH ,\, TTTTH,$ ........ $\}$

B

$S =\{ H , \,TH , \,TTH , \,TTTH ,\, TTTTH,$ ........ $\}$

C

$S =\{ H , \,TH , \,TTH , \,TTTH ,\, TTTTH,$ ........ $\}$

D

$S =\{ H , \,TH , \,TTH , \,TTTH ,\, TTTTH,$ ........ $\}$

Solution

In the experiment head may come up on the first toss, or the $2^{ nd}$ toss, or the $3^{rd}$ toss and so on till head is obtained. Hence, the desired sample space is

$S =\{ H , \,TH , \,TTH , \,TTTH ,\, TTTTH,$ …….. $\}$

Standard 11
Mathematics

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