Question

The outcomes of an experiment, along with the corresponding
probabilities are given below. Find the expected value of the
experiment.

Outcome Probability

4 0.2

2 0.3

0 0.25

-1 0.1

-5 0.15

A computer repair shop estimates that there is a 0.4 probability that the next computer will require 30 minutes to fix, a 0.5 probability that it will require 45 minutes to fix, and a 0.1 probability that it will require 70 minutes to fix. What is the expected value for how long it will take to fix the computer?

The game of roulette uses a wheel with 38 slots. The slots are
numbered 1 through 36 with two slots numbered 0 and 00. If you bet
$1 on “odd” and the ball lands on an odd number you get $2.
Otherwise you get $0. What is the expected value of betting $1 on
“odd?”

Answer #1

A roulette wheel has 38 slots, numbered 1-36, 0 and 00. This
means there are 18 even numbered slots, 18 odd numbered slots and
two slots that are neither even nor odd. A ball is released into
the wheel as it spins and is equally likely to land in any one of
the slots. Find the amount each of the following gamblers is
expected to win as well as the standard deviation.
(a) A gambler places a $100 bet on...

a modified roulette wheel has 28 slots. one slot is 0,another
is00, and the others are numbered 1 through 26. you are placing a
bet that the outcome is an odd number. (in roulette, 0 and 00 are
neither odd nor even) a. what is your probability of winning? b.
what are the actual odds against winning? c. when you bet that the
outcome is an odd number, the payoff odds are 1:1. how much profit
do you make if...

A modified roulette wheel has
28
slots. One slot is 0, another is 00, and the others are
numbered 1 through
26,
respectively. You are placing a bet that the outcome is an
eveneven
number. (In roulette, 0 and 00 are neither odd nor even.)
a. What is your probability of winning?
The probability of winning is
nothing.
(Type an integer or a simplified fraction.)
b. What are the actual odds against winning?
The actual odds against winning are
nothing:nothing....

Consider the following outcomes for an experiment.
Outcome 1 2 3 4 5
Probability: 0.2 0.25 0.15 0.1 0.3
(a) LetA={1,3,5},B={4,5}.
FindP(A),P(B),andP(A∪B).
(b) Are A and B independent? Justify.
(c) Find the expected value of the outcome.

Roulette USE SOFTWARE- In the
casino game of roulette there is a wheel with 19 black slots, 19
red slots, and 2 green slots. In the game, a ball is rolled around
a spinning wheel and it lands in one of the slots. It is assumed
that each slot has the same probability of getting the ball. This
results in the table of probabilities below.
Fair Table Probabilities
black
red
green
Probability
19/40
19/40
2/40
You watch the game at...

1.Average waiting time between 2 consecutive clients at coffee
shop is 12 min. Given you already waited 3 min, what is the
probability that you will wait more than 9 minutes from now until
your turn comes?
A e^-1
B e^1
C e^-3/4
2. Accidents occur at an average of 4 per week. What's the
probability that more than 1 accident will occur during a given
week?
A.1-4e^-5
B.1-5e^-4
C. 5e^-4
3.In above setup: what's the probability that we'll have...

1) At a lumber company, shelves are sold inȱȱ5 types of wood, 4
different widths and 3 different lengths. How many different types
of shelves could be ordered?
2) A shirt company has 5 designs each of which can be made with
short or long sleeves. There are 4 different colors available. How
many differentȱȱshirts are available from this company? Find the
indicated probability. Round your answer to 2 decimal places when
necessary.
3) A bag contains 6 red marbles,...

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