![subject](/tpl/images/cats/mat.png)
Mathematics, 25.02.2020 16:58 happy121906
In a new card game, you start with a well-shuffled full deck and draw 3 cards without replacement. If you draw 3 hearts, you win $50. If you draw 3 black cards, you win $25. For any other draws, you win nothing.
(a) Find the expected winnings for a single game.
(b) Find the standard deviation of the winnings.
(c) If the game costs $5 to play, what would be the expected value of the net profit (or loss)?
(Hint: profit = winnings - cost; X - 5)
(d) If the game costs $5 to play, what would be the standard deviation of the net profit (or loss)?
(e) If the game costs $5 to play, should you play this game?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 12:30
Solve the inequality, then identify the graph of the solution. 2x – 1 > x + 2
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:40
The tile along the edge of a triangular community pool needs to be replaced? ?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:00
Aflagpole broke in a storm. 77 7 meters are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground at a point 2424 24 meters away horizontally
Answers: 1
You know the right answer?
In a new card game, you start with a well-shuffled full deck and draw 3 cards without replacement. I...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2021 19:30
![question](/tpl/images/cats/en.png)
English, 27.01.2021 19:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 19:30
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.01.2021 19:30
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 19:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 27.01.2021 19:30
![question](/tpl/images/cats/ekonomika.png)
Business, 27.01.2021 19:30
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 19:30
![question](/tpl/images/cats/istoriya.png)
History, 27.01.2021 19:30
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 19:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 27.01.2021 19:30
![question](/tpl/images/cats/mkx.png)
Arts, 27.01.2021 19:30
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2021 19:30
![question](/tpl/images/cats/himiya.png)