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E Test: POST UNIT 4 Test CH 6 & 7 This test: 13 point(s) possible This question: 1 point(s) possible Submit tes The graph of
E Test: POST UNIT 4 Test CH 6 & 7 This test: 13 point(s) possible This question: 1 point(s) possible Submit tes The graph of the discrete probability to the right represents the number of live births by a mother 48 to 53 years old who had a live 0.30 T -0.278 birth in 2015. Complete parts (a) through (d) below. 0.25- 0.20- Probability 0.15- (a) What is the probability that a randomly selected 48- to 53-year-old mother who had a live birth in 2015 has had her fourth live birth in that year? (Type an integer or a decimal.) (b) What is the probability that a randomly selected 48- to 53-year-old mother who had a live birth in 2015 has had her fourth or fifth live birth in that year? (Type an integer or a decimal.) (c) What is the probability that a randomly selected 48- to 53-year-old mother who had a live birth in 2015 has had her sixth or more live birth in that year? (Type an integer or a decimal.) (d) If a 48- to 53-year-old mother who had a live birth in 2015 is randomly selected, how many live births would you expect the mother to have had? (Round to one decimal place as needed.)= Test: POST UNIT 4 Test CH 6 & 7 This test: 13 point(s) possible This question: 1 point(s) possible Submit test 1 - In the game of roulette, a player can place a $4 bet on the number 6 and have a , probability of winning. If the metal ball lands on 6, the player gets to keep the $4 paid to play the game and the player is awarded $140. Otherwise, the player is awarded nothing and the casino takes the player's $4. What is the expected value of the game to the player? If you played the game 1000 times, how much would you expect to lose? The expected value is $. (Round to the nearest cent as needed.) The player would expect to lose about $ (Round to the nearest cent as needed.)
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