Suppose a recent poll shows that 40% of americans drink soda every day. amy, a researcher at a local university, takes a random sample of 22 americans. let x represent the number of americans in amy's sample who drink soda every day. let μ and σ represent the parameters of a normal distribution and let n and p represent the parameters of a binomial distribution the sampling distribution of x is exactly binomial with n 22 and p - 0.4 o exactly normal with μ = 8.8 and σ = 2.298. approximately normal with μ = 0.4 and σ 0.104. almost exactly binomial with n = 22 and p = 0.4