Last updated date: 03rd Jan 2023 Show • Total views: 239.4k • Views today: 23.90k Answer
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Answer (Detailed Solution Below)Option 1 : \(\dfrac 1 4\) Free Electric charges and coulomb's law (Basic) 10 Questions 10 Marks 10 Mins Concept: The probability of the occurrence of an event A, out of total possible outcomes N, is given by P(A) = \(\rm \dfrac{n(A)}{N}\), where n(A) is the number of ways in which the event A can occur. Calculation: The total number of different possible outcomes (N) in tossing a coin 3 times is 23 = 8. For getting a head and a tail alternately, the possibilities are HTH, THT → 2 possibilities n(A). ∴ Required probability = \(\rm \dfrac{n(A)}{N}=\dfrac{2}{8}=\dfrac{1}{4}\) Alternate Method The possible set of A coin is tossed 3 times is {HHH}{HHT}{HTH}{HTT}{TTT}{TTH}{THT}{THH} = 8 The probability of getting a head and a tail alternately is {HTH}{THT} = 2 So, required probability = \(\rm \dfrac{n(A)}{N}=\dfrac{2}{8}=\dfrac{1}{4}\) Last updated on Dec 21, 2022 Union Public Service Commission (UPSC) has released the NDA I 2023 Notification for 395 vacancies. Candidates can apply between 21st December 2022 to 10th January 2023. The selection process for the exam includes a Written Exam and SSB Interview. Candidates who get successful selection under UPSC NDA will get a salary range between Rs. 15,600 to Rs. 39,100. It is expected that a new notification for UPSC NDA is going to be released. Ace your Mathematics and Probability preparations for Probability of Random Experiments with us and master Problems on coins for your exams. Learn today! What is the probability of getting one head when tossing a coin 3 times?If you flip a coin three times the chance of getting at least one head is 87.5%.
What is the probability of getting exactly 1 head?Probability of getting exactly one head is 2/4 = 1/2.
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