. Question 1 E/ 0/1 pt '0 3 ('3 99 6) Details A Statistics instructor looked at the data from his online course to see how many times the students attempted to take Quiz 2. He found that 12% took the quiz just one time. 41% attempted the quiz twice. 32% totaled three attempts, and 15% ended up with four attempts. He drew up with the following probability distribution frequency table: X = the number of attempts at student took on Quiz 2. Find the expected value of X. Submit Question 0 Question 2 E 0/1 pt '0 3 2:3 99 (D Details Carlie is betting on a game in which each bet has an expected value of -$O.56. This implies O Carlie will win $0.56 every time she plays the game. O Carlie will lose $0.56 every time she plays the game. O if Carlie plays the game many times, on average, Carlie should expect to lose about $0.56 each game. Question 9 Opt 03 89 0 Details Robert bought a $5 lottery ticket such that 1 in 100 would win $10, 1 in 1000 would win $100, and 1 in 50 million would win 1 million. What is the expected value of a lottery ticket in dollar? Does Robert expect to earn a profit if he buys 100 tickets? Select an answer By how much?Question 4 Opt 03 99 0 Details A POO 0.45 0.55 Find the expected value of the above random variable. Submit Question Question 5 6 0/1 pt 03 99 0 Details Suppose you model a game of chance with a discrete probability distribution. Let X be the net amount of money won or lost by the player. Let P(X) be the probability of the corresponding outcome. The three events are as follows: There is a 23% chance the player wins 4 dollars. There is a 25% chance the player breaks even. There is a 52% chance the player loses 10 dollars. Complete the table below to model the scenario X PIX) Submit Question Question 6 (0/1 pt 0 3 99 0 Details Scores Probability 0.5 5 0.1 7 0.1 9 0. 15 12 0. 15 Find the expected value of the above random variable. Question Help: Video Submit Question Question 7 G O/ pt 03 99 0 Details A ping pong ball is drawn at random from an urn consisting of balls numbered 2 through 10. A player wins 1 dollar if the number on the ball is odd and loses 1 dollar if the number is even. What is the expected value of his winnings? A card is drawn at random from a standard deck of playing cards (no jokers). If it is red, the player wins 1 dollar; if it is black, the player loses 2 dollars. Find the expected value of the game. In a class there are 20 students: 3 are 5 6", 5 are 56", 4 are 5'10', 4 are 6, and 4 are 6 2". A student is chosen at random. What is the student's expected height? inches