The probability hat a randomly selected 3-year-old male salamander will live to

Question

The probability hat a randomly selected 3-year-old male salamander will live to be 4 years old is 0.95246 (a) What is the probability hat two randomly selected 3-year-old male salamanders will live to be 4 years old? (b) What is the probability that eight randomly selected 3 year old male salamanders will live to be 4 years old? eight randomly selected 3-year-old male salamanders dd not live to be 4 years ol a) The probability tha two andomly selected 3-year old male salanders wi live to be 4 years old i Round to five decimal places as needed (Rlound to five decimal places an needed) Round to five deaimal places as needed) 0.05 Enter your wich of the anwwer boxen comm option command

Explanation / Answer

(a) requrired probability that two randomly selected....=0.95246*0.95426=0.908894

(b) requrired probability that 8 randomly selected....=0.95246^6=0.746587

(c) let probability of not living to be 4 years..=1=0.95426=0.04574

here we use binomial distirbution with parameter n=8 and p=0.04574

and for Binomial distribution ,P(X=r)=nCrpr(1-p)n-r  

P(X>1)=1-P(X=0)=1-0.6876=0.3124

second part of c

(No , greater than 0.05)

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