A Department of Transportation report about air travel found that, nationwide, 78% of all flights are on time. Suppose a random sample of 50 flights is selected from all nationwide flights that were completed in the past 30 days (over 1000 flights). Let the random variable X be defined as the number of sampled flights that arrived on time.What is the value of the n parameter of the binomial random variable X?

According to a recent national poll, 41% of females and 32% of males identify as democrats. Suppose a random sample of 120 females and 140 males is obtained.What is the value of the parameters for the binomial random variable X, the number of democrats in the sample of 120 females?n =   (report your answer in whole numbers)p =   (report your answer to two decimal places)

In Texas, 30% of parolees from prison return to prison within 3 years. Suppose 15 prisoners are released from a Texas prison on parole. Assume that whether or not one prisoner returns to prison is independent of whether any of the others return to prison. Let the random variable X be the number of parolees out of 15 that return to prison within 3 years. What are the values of the parameters for the binomial random variable X?n = p =

What is the value of the p parameter of the binomial random variable X?

A Gallup Poll in May 2004 estimated that roughly 70% of U.S. adults are in favor of the death penalty for a person convicted of murder. A random sample of 750 U.S. adults is chosen. Let X be the number of adults (out of 750) who favor the death penalty.The distribution of X is binomial. What are the values of n and p?

Suppose X follows a binomial distribution with n=30 trials and p=0.5 probability of success . Find μₓ, the mean of X. Do not round your answer.2 points