A coin is tossed 3 times what is the probability of getting at least two head

The ratio of successful events A = 4 to the total number of possible combinations of a sample space S = 8 is the probability of 2 heads in 3 coin tosses. Users may refer the below solved example work with steps to learn how to find what is the probability of getting at-least 2 heads, if a coin is tossed three times or 3 coins tossed together. Users may refer this tree diagram to learn how to find all the possible combinations of sample space for flipping a coin one, two, three or four times.

Solution
Step by step workout
step 1 Find the total possible events of sample space S
S = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}

S = 8

step 2 Find the expected or successful events A
A = {HHH, HHT, HTH, THH}

A = 4

step 3 Find the probability
P(A) = Successful Events/Total Events of Sample Space
= 4/8

= 0.5
P(A) = 0.5

0.5 is the probability of getting 2 Heads in 3 tosses.

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A coin is tossed 3 times. The ...

Updated On: 27-06-2022

(00 : 00)

Text Solution

`3//8``1//2`12

Answer : B

Answer

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

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एक सिक्का 3 बार उछाला जाता है कम-से-कम दो शीर्ष प्राप्त करने की प्रायिकता होगी

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एक सिक्का 3 बार उछाला जाता है। कम-से-कम दो शीर्ष (head) प्राप्त करने की प्रायिकता होगी।

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