A wildlife biologist examines frogs for a genetic trait he suspects may be linked to sensitivity to industrial toxins in the environment. Previous research had established that this trait is usually found in 1 of every 8 frogs. He collects and examines a dozen frogs.

banganX 2021-08-18 Answered
A wildlife biologist examines frogs for a genetic trait he suspects may be linked to sensitivity to industrial toxins in the environment.
Previous research had established that this trait is usually found in 1 of every 8 frogs. He collects and examines a dozen frogs.
If the frequency of the trait has not changed, what’s the probability he finds the trait in
a) none of the 12 frogs?
b) at least 2 frogs?
c) 3 or 4 frogs?
d) no more than 4 frogs?
You can still ask an expert for help

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Expert Answer

avortarF
Answered 2021-08-19 Author has 113 answers
1. binompdf(12, .125, 0) = .201
2. binomcdf(12, .875, 10) = .453
3. binompdf(12, .125, 3) + binompdf(12, . 125, 4) = .171
4. binomcdf(12, .125, 4) = .989 Result:A. .201
B. .453
C. .171
D. .989
Not exactly what you’re looking for?
Ask My Question

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Relevant Questions

asked 2021-05-21
At a certain college, 6% of all students come from outside the United States. Incoming students there are assigned at random to freshman dorms, where students live in residential clusters of 40 freshmen sharing a common lounge area. How many international students would you expect to find in a typical cluster? With what standard deviation?
asked 2021-09-17
According to sales information in the first quarter of 2016. 2.5% of new vehicles sold in the United States were hybrids. This is down from 2.8% for the same period a year earlier. An analysts
asked 2021-10-02
If X is a binomial random variable, for what value of θ is the probability b(x; n, θ ) a maximum?
asked 2021-12-17
In a 10-question true/false test, what is the probability of guessing correctly on questions 1 through 4 exactly 2 times?
asked 2021-09-23
Compute the probability of X successes, using Table B in appendix A.
n=12,p=0.90,x=2
I believe they are using the the binomial probability formula and im not sure how to start if you can give a step by step anwser explanation that would be helpful.
asked 2022-02-12
When n=20 and p=0.2, what is P(X12)
asked 2021-09-23

In Exercises, X denotes a binomial random variable with parameters n and p. For each exercise, indicate which area under the appropriate normal curve would be determined to approximate the specified binomial probability.
P(4<X<8)