Question
Question: Probability that a person aged 70 years will die is P. out of 5 person A<sub>1</sub>, A<sub>2</sub> ...
Probability that a person aged 70 years will die is P. out of 5 person A1, A2 .........A5 aged 70 years, then the probability that atleast one will die and A1 will be the first man to die.
Probability that atleast one dies = 1 – prob., that no one dies
A
B
C
D
½
Answer
Explanation
Solution
= 1 – (1 – p)5
Required probability = 
.