Elitmus
Exam
Numerical Ability
Probability
What is the probability of getting all head in 5 consecutive coin toss?
Read Solution (Total 9)
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- 1 case:
HHHHH
P=(1/2)^5=1/32 - 7 years agoHelpfull: Yes(9) No(0)
- 1/32
Probability of heads 5 times=(1/2)^5=1/32 - 7 years agoHelpfull: Yes(2) No(0)
- 1/(2^5)=1/32
- 6 years agoHelpfull: Yes(1) No(0)
- possibility=2^5=32
sum of observation (all head ) = (HHHHH) = 1
probability = sum of observation / possibility
probability = 1 / 32 - 5 years agoHelpfull: Yes(1) No(0)
- 5c5*(1/2)^0*(1/2)^5
1/32 - 6 years agoHelpfull: Yes(0) No(0)
- 1/32
1/2 for each toss, and multiplied together it is 1/32 - 6 years agoHelpfull: Yes(0) No(0)
- 1/120
If we consider all the possibilities then the total no of possibilities will be 5! i.e. 120 and in only 1 case we got all heads i.e. HHHHH - 6 years agoHelpfull: Yes(0) No(2)
- Answer=2^5=32
Sum of observations (all heads ) = HHHHH= 1
probability = sum of observation /total possibility
so, probability of all heads = 1 / 32 - 2 years agoHelpfull: Yes(0) No(0)
- =1/32
=Number of Total possible outcomes = 2^5
=32
and number of times all heads occur is 1
hence P = 1/32 - 2 years agoHelpfull: Yes(0) No(0)
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