Suppose the binomial experiment is a salesperson visits 6 customers and the discrete random variable, x, is the total number of sales the salesperson makes (customers who make a purchase) and the probability of a sale on a sales call is 0.50. What is the probability the total number of sales the salesperson makes is less than 6? Enter your answer as a number with four digits to the right of the decimal point in the box shown below. Your Answer: Answer Question 4 14) Listen Suppose the Poisson experiment is cars arrive at the drive-up window of a restaurant during a 20-minute period. The discrete random variable, x, is the total number of cars arriving during a 20-minute period. Analysis of the restaurant's data shows that the average number of cars arriving during a 20-minute period of time is 6. What is the probability that exactly 3 cars will arrive at the drive-up window of the restaurant during a 20-minute period? Enter your answer as a number with four digits to the right of the decimal point in the box shown below. Suppose the experiment is operate a car dealership and the random variable, x, is the number of cars sold per day. The probability distribution is given by the following table. What is the variance of the number of cars sold per day? Enter your answer as a number with four digits to the right of the decimal point in the box shown below. Number of Cars Probability of x. Sold per Day, x f(x) 0.10 0.35 0.30 0.20 9 0.05