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22 Feb 2022, 04:30
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
55% (01:36) correct
45%
(01:31)
wrong
based on 303
sessions
History
Date
Time
Result
Not Attempted Yet
A fair-sided coin is tossed three times. What is the probability that I do not get heads on at least two consecutive tosses?
A. 1/4
B. 3/8
C. 5/8
D. 3/4
E. 7/8
Are You Up For the Challenge: 700 Level Questions
A. 1/4
B. 3/8
C. 5/8
D. 3/4
E. 7/8
Are You Up For the Challenge: 700 Level Questions
22 Feb 2022, 05:37
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Number of possible outcomes when 3 coins are flipped: \(2^3 = 8\)
Number of ways in which 2 or more consecutive heads are flipped:\( 3\) (HHH, HHT or THH)
Probability that I do not get heads on at least two consecutive tosses: \(1-\frac{3}{8} = 5/8\)
Answer C
Number of ways in which 2 or more consecutive heads are flipped:\( 3\) (HHH, HHT or THH)
Probability that I do not get heads on at least two consecutive tosses: \(1-\frac{3}{8} = 5/8\)
Answer C
Archit3110
Major Poster
25 Feb 2023, 00:54
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total flips 2^3 ; 8
cases possible
TTH ; 3 ways
TTT; 1 way
HTH: 1 way
5/8
option C
cases possible
TTH ; 3 ways
TTT; 1 way
HTH: 1 way
5/8
option C
Bunuel
