In a Binomial Distribution, the mean and variance are equal.Review LaterTrueFalse

The variance of the binomial distribution is alwaysReview LaterEqual to meanless than meangreater than meanequal to standard deviation

For a negative binomial distribution, the mean and variance are related by

The standard deviation of the binomial distribution is

For a negative binomial distribution, the mean and variance are related bya.μ<σ2𝜇<𝜎2b.μ=σ2𝜇=𝜎2c.μ>σ2𝜇>𝜎2d.None of all

Given a Binomial random variable Y which counts the number of successes in n independent trials and the successful rate for each trial is 0.3. Find the mean and variance of Y, respectively. (The 1st number is the mean and the 2nd is the variance.)