SOLUTION: 2.2 Roulette wheel: The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wheel and will eventually land in a slot,

Algebra.Com
Question 1157141: 2.2 Roulette wheel: The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wheel and will eventually land in a slot, where each slot has an equal chance of capturing the ball.

a) You watch a roulette wheel spin 9 consecutive times and the ball lands on a red slot each time. What is the probability that the ball will land on a red slot on the next spin?
(please round to four decimal places)
b) You watch a roulette wheel spin 220 consecutive times and the ball lands on a red slot each time. What is the probability that the ball will land on a red slot on the next spin?
(please round to four decimal places)
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
.

The answer to both questions,  a)  and  b),  is in this key phrase of the condition 

    "each slot has an equal chance of capturing the ball.""

It means that the result of each next experiment  DOES  NOT  DEPEND  on prehistory.

The answer for probability is   .
RELATED QUESTIONS

2.2 Roulette Wheel. The game of roulette involves spinning a wheel with 38 slots: 18 red, (answered by greenestamps)
Roulette wheel.The game of roulette involves spinning a wheel with 38 slots: 18 red, 18... (answered by greenestamps)
In the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1, 2, ..., 36. The (answered by math_helper)
A roulette wheel has 38 slots numbered 00, 0, 1, 2, ..., 35, 36. Eighteen of the slots... (answered by stanbon)
A roulette wheel has 38 slots numbered 00, 0, 1, 2, ..., 35, 36. Eighteen of the slots... (answered by Fombitz)
A roulette wheel has 38 slots around the rim. The first 36 slots are numbers from 1 to... (answered by jim_thompson5910)
a roulette wheel has 38 slots in which the ball can land. two of the slots are green,... (answered by Fombitz)
a roulette wheel has 38 slots in which the ball can land. two of the slots are green, 18... (answered by stanbon)
A standard roulette wheel contains the numbers 1-36, and two spaces marked “0” and “00.”... (answered by Boreal)