143k views
4 votes
Suppose that Y1​ and Y2​ are binomial random variables with parameters (n,p1​) and (n,p2​), respectively, where p1​

User WitoldW
by
8.3k points

1 Answer

5 votes

Final answer:

A binomial random variable represents the number of successes in a fixed number of independent trials. The mean and standard deviation can be calculated using the formulas µ = np and σ = √(npq). The probability of obtaining a certain number of successes can be calculated using the binomial probability formula.

Step-by-step explanation:

The question is asking about two binomial random variables with parameters (n, p1) and (n, p2). A binomial random variable is a discrete random variable that arises from Bernoulli trials. It represents the number of successes in a fixed number of independent trials. The parameters n represents the number of trials and p represents the probability of success on each trial.

The mean of a binomial random variable can be calculated using the formula µ = np, where µ is the mean and n is the number of trials. The standard deviation is given by the formula σ = √(npq), where σ is the standard deviation and q is the probability of failure on each trial (q = 1 - p).

To find the probability distribution for each binomial random variable, you can use the formula P(X = x) = (nCx) * (p^x) * (q^(n-x)), where P(X = x) is the probability of x successes, nCx is the number of combinations of n items taken x at a time, p^x is the probability of x successes, and q^(n-x) is the probability of n-x failures.

User Parastoo
by
7.7k points