5) In a pizza takeout restaurant, the following probability distribution was obtained. The random 5) variable x represents the number of toppings for a large pizza. Find the mean and standard deviation. x P(x) 0 0.30 1 0.40 2 0.20 3 0.06 4 0.04 A) mean: 1.30; standard deviation: 1.54 B) mean: 1.30, standard deviation: 2 38 C) mean: 154; standard deviation: 1.30 D) mean: 1.14; standard deviation: 1.04 Identify whether the statement describes inferential statistics or descriptive statistics. 6) There is a relationship between smoking cigarettes and getting emphysema. 6) A) inferential statistics B) descriptive statistics Determine the number of outcomes in the event. Then decide whether the event is a simple event or not. Explain your reasoning. 7) You randomly select one card from a standard deck. Event B is selecting the ace of hearts. 7) A) 4; Not a simple event because it is an event that consists of more than a single outcome. B) 13; Not a simple event because it is an event that consists of more than a single outcome. C) 4; Simple event because only one card is selected. D) 1; Simple event because it is an event that consists of a single outcome. Provide an appropriate response. 8) Classify the statement as an example of classical probability, empirical probability, or subjective 8) probability. The probability that it will rain tomorrow is 21%, A) classical probability B) subjective probability C) empirical probability 9) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an 9) ace or a black card. 15 29 13 26 C) 52 D) 13