or which of the following is a binomial distribution appropriate for the variable ? Select all that apply: 4 answers are correct. For which of the following is a binomial distribution appropriate for the variable ? Select all that apply: 4 answers are correct. When an opinion poll calls residential telephone numbers at random, only 20% of the calls reach a live person. You watch the random dialing machine make 15 calls. is the number that reach a live person. A couple really wants to have a boy. They decide that they will keep having children until they have their first boy. Successive births are independent and each has about probability 0.5 of being a boy or a girl. is the number of the pregnancy that finally succeeds at bringing a baby boy to the couple. A manufacturer of medical catheters randomly selects 8 catheters, one from each hours production for a detailed quality inspection. One variable recorded is the count of catheters with an unacceptable diameter (too small or too large). A sample survey asks 10 people randomly selected from a family of 20 people whether they oppose the legalization of medical marijuana. is the number of persons who say Yes. A researcher randomly selects 10 men over 50 years old and records whether or not each individual's level of niacin in his bloodstream is high, average, or low. is the number of men with high niacin. A nurse instructs an adult patient to take his resting pulse 10 times over the next few days. A resting pulse requires resting for at least 10 minutes before taking the pulse. is the number of measurements that are below 100 beats per minute