Question

Andrea visits a casino to play a game of American roulette. She bets only on even numbers. What is the probability that she will win?

Answer 1

okay so in american roulette how many numbers are on the wheel in total?

Answer 2

so In number ranges from 1 to 10 and 19 to 28, odd numbers are red and even are black. In ranges from 11 to 18 and 29 to 36, odd numbers are black and even are red.

Answer 3

now how many of the numbers in total are even

Answer 4

@asiabae

Answer 5

@asatt32 can you check to make sure im doing it right?

Answer 6

hold on this worded weirdly im thinking like 2 seconds :)

Answer 7

lol okay xD

Answer 8

18

Answer 9

so just to be sure her odds are 18/32 or .5?

Answer 10

well @asiabae theres your answer XD

Answer 11

ya her odds would be 56%

Answer 12

18/30=.56 something .56 x 100 is 56 percent! i hope this helps

Answer 13

thanks

Answer 14

no worries

Answer 15

can you figure out two more problems for me?

Answer 16

i can try, ill tag some help in here to becase im so great in math.

Answer 17

@undeadknight26 @mathmale @Marco,Phillip

Answer 18

A businessman bought a car dealership that is incurring a loss of $500,000 a year. He decided to strategize in order to turn the business around. In addition to the $500,000 annual loss, his fixed cost for running the dealership on a monthly basis is $5,000. The number of cars sold per week and their probabilities mimic the outcomes of three coins being flipped. The number of cars sold in a week was observed to be the same as the number of tails that appear when three coins are flipped. See the distribution:


Number of Tails 0 1 2 3
Probability 1

8 3

8 3

8 1

8
What is the expected number of cars sold in one week?



1



1.5



2



2.5