What is the probability of obtaining 4 heads in a row when a coin is tossed?

Category: QuestionsWhat is the probability of obtaining 4 heads in a row when a coin is tossed?
Editor">Editor Staff asked 11 months ago

What is the probability of obtaining 4 heads in a row when a coin is tossed?
 
(a) \frac {5}{8}
 
 
(b) \frac {6}{19}
 
 
(c) \frac {1}{16}
 
 
(d) \frac {4}{7}
 
 
I got this question during a job interview.
 
I’d like to ask this question from Probability topic in portion Probability of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

The correct option is (c)
1
16
 
 
Easiest explanation: Probability of getting 4 heads in a row =
1
2
×
1
2
×
1
2
×
1
2
=
1
16
 
 
hence, the probability of getting 4 heads in a row =
1
16