Question
Download Solution PDFA coin tossed 4 times. The probability of getting at least one head is -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
A coin is tossed 4 times.
We need the probability of getting at least one head.
Formula Used:
Probability of at least one head = 1 - Probability of no heads.
Probability of no heads = (Probability of tail)n, where n = number of tosses.
Calculation:
Probability of tail = 1/2
n = 4
Probability of no heads = (1/2)4
Probability of no heads = 1 / (2 × 2 × 2 × 2)
Probability of no heads = 1/16
Probability of at least one head = 1 - (1/16)
⇒ Probability of at least one head = (16/16) - (1/16)
⇒ Probability of at least one head = 15/16
The probability of getting at least one head is 15/16.
Last updated on Mar 12, 2025
-> The MP Police Constable 2023 Final Merit List has been out on 12th March 2025.
-> MP Police Constable 2025 Notification will soon be released on the official website.
-> The The Madhya Pradesh Professional Examination Board (MPPEB) will announce more than 7500 Vacancies for the post of constable.
-> Previously, the notification had invited eligible candidates to apply for 7,090 constable posts.
-> Candidates who have passed 10th or 12th are eligible to apply.
-> The final candidates selected will receive a salary between 19,500 and 62,600 INR.