The bacteria has the probability of split into 3 and probability to di...
Probability for the bacteria to be dying = 1/3
Hence probability of survival = 1/5
if they survive, they will be split into 3 more bacteria hence, p = (1/3) + (3* 1/5)
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The bacteria has the probability of split into 3 and probability to di...
Given:
- The bacteria has the probability of splitting into 3.
- The probability of dying is 1/3rd of the total bacteria.
- Let the probability be P.
- Some of them survive with a probability of 1/5.
To find the correct relation, let's break down the problem step by step.
Finding the probability of splitting:
- The bacteria has the probability of splitting into 3.
- This means that for every bacteria, there is a 1/3 probability of it splitting into 3 new bacteria.
- Therefore, the probability of splitting is 1/3.
Finding the probability of dying:
- The probability of dying is 1/3rd of the total bacteria.
- Let's assume there are N bacteria initially.
- The probability of dying for each bacteria is 1/3.
- So, the total probability of dying is (1/3) * N.
Finding the probability of surviving:
- Some of the bacteria survive with a probability of 1/5.
- Let's assume X bacteria survive out of N initial bacteria.
- The probability of surviving for each bacteria is 1/5.
- So, the total probability of surviving is (1/5) * X.
Finding the relation between the probabilities:
- The total initial bacteria N can be split into 3 new bacteria or die.
- Therefore, the total probability of splitting or dying is equal to 1.
- So, we have the equation: (1/3) + (1/3) * N = 1.
- Solving this equation, we get N = 2/3.
- The total surviving bacteria X can come from the initial bacteria or the splitting bacteria.
- Therefore, the total probability of surviving is equal to the sum of surviving from the initial bacteria and surviving from the splitting bacteria.
- So, we have the equation: (1/5) * X + (1/3) * (1/3) * X = 1.
- Substituting the value of N, we get: (1/5) * X + (1/3) * (1/3) * X = 1.
- Simplifying this equation, we get (1/5) * X + (1/9) * X = 1.
- Combining the terms, we get (9/45) * X + (5/45) * X = 1.
- Simplifying further, we get (14/45) * X = 1.
- Dividing both sides by (14/45), we get X = 45/14.
Therefore, the correct relation is:
- p = (1/3) * (3 * (1/5)).
- Simplifying this, we get p = (1/3) * (3/5).
- Further simplifying, we get p = (1/5).
- So, the correct answer is option 'C': p = (1/3) * (3/5).