14.9k views
5 votes
The probability that a randomly selected​ 5-year-old male horned beetle will live to be 6 years old is 0.25624.​

(a) What is the probability that two randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old?
(b) What is the probability that six randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old?

User Rcorty
by
7.5k points

2 Answers

2 votes

Answer: (a) 0.0656

(b) 0.00028

Explanation:

Since we have given that

Probability that a randomly selected 5-year old male horned beetle will live to be 6 years old = 0.25624

If there are

Number of male horned beetles = 2

So, probability that two randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old is given by


(0.25624)^2\\\\=0.0656

If number of male horned beetles = 6

So, probability that six randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old is given by


(0.25624)^6\\\\=0.00028\\

Hence, (a) 0.0656

(b) 0.00028

User Ape
by
6.7k points
3 votes

Answer:

(a) The probability that two randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old is 0.06566.

(b) The probability that six randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old is 0.000283.

Explanation:

It is given that the probability that a randomly selected​ 5-year-old male horned beetle will live to be 6 years old is 0.25624.​

(a)

We need to find the probability that two randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old.


P=0.25624* 0.25624=(0.25624)^2=0.0656589376\approx 0.06566

Therefore the probability that two randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old is 0.06566.

(b)

We need to find the probability that six randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old.


P=0.25624* 0.25624* 0.25624* 0.25624* 0.25624* 0.25624=(0.25624)^6=0.000283061988948\approx 0.000283

Therefore the probability that six randomly selected​ 5-year-old male horned beetles will live to be 6 years​ old is 0.000283.

User Elliott Hughes
by
7.2k points