Question 6 1 Point A concerned parents group determined the number of commercials shown in each of five children's programs over a period of time. The probability distribution of these observations is shown below. What is the expected number of commercials during a children's program? X 5 6 7 8 9 P(X) 0.2 0.25 0.4 0.1 0.05 A 7 B 6.55 8 7.5Question 7 1 Point A survey found that 81% of adults need correction for their eyesight. If 10 adults are randomly selected, what is the expected number of adults who will need their eyesight corrected. A 5 B 1.9 8.1 D 10Question 8 1 Point A survey found that 22% of pet owners had their pets bathed professionally rather than do it themselves. If 13 pet owners are randomly selected, find the probability that less than 4 people have their pets bathed professionally. A 0.863 B 0.254 0.684 D 0.308Question 9 1 Point Which of the following is not a random variable? A The number of heads in ten tosses of a fair coin. B The type of animal that a resident of Florida owns. The age of the driver in cars passing through a toll booth. D The time it takes to travel from California to Illinois.Question 10 i 'IPoint ) Which of the following random variables is continuous? Recording the number of medals that the American Olympic team won in each of the past 20 Olympic games. Measuring the distance travelled by different cars using 1-Iiter of gasoline. Tallying the number of times a coworker has been late to work. Documenting the shoe sizes of all players in the NBA. Question 11 1 Point Does the table below represent a valid discrete probability distribution? X 2 3 4 5 6 P(X) 0.3 0.2 0.2 0.2 0 0.1 A No, this is not a valid discrete probability distribution because this is considered a continuous probability distribution. Yes, this is a valid discrete probability distribution because all of the probabilities add to 1, and all B probabilities are between 0 and 1. No, this is not a valid discrete probability distribution because a probability is equivalent to 0 which is not possible. No, this is not a valid discrete probability distribution because three probabilities match. You cannot have the same probability for more than one outcome.Question 12 Which ofthe following random variables is discrete?r Measuring the heights of all players in the NBA. Recording the number of times a player must spin a roulette wheel before they get the number "I. Documenting the amount of weight loss per week for a new diet. Reporting the time it takes for an LED bulb to burn out