Suppose that 16% of the U.S. population is left handed. If a random sample of 130 people are selected, approximate the probability that fewer than 23 are left handed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to three decimal places but do not round intermediat

When X is a binomial random variable, the mean of the probability distribution = np.  A jury has 12 people on the jury. If a certain town has a population that is 9 percent a certain race, how many people of that race would you expect would be on the jury if jury selection was random (and every person was equally likely to be on the jury). Round answers to 4 decimal places as needed.

40% of the squirrels in Cititon Park are gray. What is the probability that, in a random sample of 232 squirrels, fewer than 93 are gray squirrels? Use a normal approximation to compute your answer. Round your answer to 4 decimal places.

78​% of U.S. adults think that political correctness is a problem in America today. You randomly select six U.S. adults and ask them whether they think that political correctness is a problem in America today. The random variable represents the number of U.S. adults who think that political correctness is a problem in America Find the variance of the binomial distribution.     σ2=nothing   ​(Round to the nearest tenth as​ needed.)

33% of the squirrels in Cititon Park are gray. What is the probability that, in a random sample of 217 squirrels, fewer than 72 are gray squirrels? Use a normal approximation to compute your answer. Round your answer to 4 decimal places.