Mathematics, 19.11.2019 01:31 kimseokjin92
The game of european roulette involves spinning a wheel with 37 slots: 18 red,18 black, and 1 green. a ball is spun onto the wheel and will eventually land in a slot, where each slot hasan equal chance of capturing the ball. gamblers can place bets on red or black. if the ball lands on theircolor, they double their money. if it lands on another color, they lose their money.(a) suppose you play roulette and bet$3 on a single round. what is the expected value and standarddeviation of your total winnings? (b) suppose you bet$1 in three different rounds. what is the expected value and standard deviation ofyour total winnings? (c) how do your answers to parts (a) and (b) compare? what does this say about the riskiness of the twogames?
Answers: 3
Mathematics, 21.06.2019 17:40
Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882
Answers: 1
Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
Mathematics, 22.06.2019 02:00
Extremely mega ultra important question! plss answer as fast as you can you will get 84 points! the area of this right triangle is half the area of which of these rectangles?
Answers: 2
The game of european roulette involves spinning a wheel with 37 slots: 18 red,18 black, and 1 green...
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