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Probability Theory
Page 4
Questions (276)
What is the probability that X and -Y sum to a negative value?
2 answers
asked by
SK
3,067 views
What is the relationship between two indicator random variables, IA(ω) and IB(ω), in terms of the associated events, A and B
2 answers
asked by
Kina
6,594 views
Suppose flaws occur on the surface of glass with density of 3 per square meter. What is the probability of there being exactly 4
2 answers
asked by
probability
516 views
Independent trials in relationship to probability theory means that?
a. The outcome of each trial is totally independent from
3 answers
asked by
Linda
903 views
A random variable X has a Gamma distribution with (alpha = a, beta = b). Show that P(X > 2ab) < (2/e)^a.
hint: X > c is
3 answers
asked by
Allie
428 views
What is the probability density function (pdf) of the given random variable X?
2 answers
asked by
Mac Daniels
543 views
Let’s define two events a and B in the same sample space. Their probabilities are as follows:
P(A) = 0.5 P(B) = 0.6 Is it
3 answers
asked anonymously
40 views
A bag contains different colored balls; 7 yellow, 3 red, and 6 green. I randomly select one ball, note its color, leave it out
2 answers
asked anonymously
88 views
find an example for random variables X,X',Y,Y' with the following characteristics:
a)X and X' have the same distribution b)X+Y
1 answer
asked by
sanaz
858 views
Suppose X_n is a sequence of independent Bernoulli random variables and p(X_n=1)=p_n. If Y=∑_(n=1)^∞▒X_n is convergent
1 answer
asked by
sanaz
1,097 views
1. Consider the "coin flipping game", and let X record the first time when the Head" player has $1. What is the probability that
2 answers
asked by
COin Filipping help
489 views
Verify that the expression formula for a hypergeometric distribution gives the same result as the general equation for the
1 answer
asked by
Joshua
384 views
uppose that cars arrive at a traffic light according to a Poisson process with a rate
of one car per minute starting from time t
1 answer
asked by
sridhar
608 views
Consider a collection of n biased coins, each showing Heads with probability p and Tails with probability 1-p , independently of
2 answers
asked by
sand
516 views
Consider a collection of biased coins, each showing Heads with probability and Tails with probability , independently of the
2 answers
asked by
sand
588 views
1) A lotery has 1,000,000 tickets and draws 100 tickets to award prizes. How many tickets would you expect to have to purchase
3 answers
asked by
Sally
820 views
Each of 2 players, independently, play a game 5 times, with each game having probability of success 0.40. What is the standard
1 answer
asked by
Jay
464 views
Urn A contains R red balls and W white balls, urn B contains r red balls and w white balls.
a.If an urn is selected at random and
2 answers
asked by
Anonymous
569 views
How can the probability distribution of prices of new cars be described
1 answer
asked by
Simone
315 views
How can the probability distribution of prices of new cars be described
1 answer
asked by
Simone
308 views
In a 1970’s game show, a contestant was given a choice of three doors of which one contained a prize. The other two doors
3 answers
asked by
Lisa
643 views
Event A represents the act of drawing a rank of eight from a standard deck of 52 cards, if B represents the event of drawing any
2 answers
asked by
Lorrie
522 views
I need help calculating a c value such that f(x,y) is a probability density function. What makes a function a probability
2 answers
asked by
quentin
519 views
A student claims that if a fair coin is tossed and comes
up heads 5 times in a row, then, according to the law of averages, the
2 answers
asked by
jennifer
604 views
Drawing one slip, what is P (slip contains a vowel)?
1 answer
asked by
tom
321 views
The probabilty Distribution of a random variable X is given by the function
f(x)= 1/84 (5/x) (4/3-x) for x= 0,1,2,3 Calculate the
1 answer
asked by
Karmen
470 views
If P(A)= 1/2, P(B)= 1/6 and P(A and B)= 1/2, what can you say about P(A and B)?
I don't understand?
7 answers
asked by
Rmz
303 views
If a single letter is drawn from the set {m, a, t, h}, what is the probability that the letter drawn is a member of the set {m,
1 answer
asked by
Rmz
395 views
if the probability of a dribbling drummer is .38, find the standard deviation of the dribbling drummers drumming for the twelve
1 answer
asked by
Belle
488 views
Socrates owns just one ship. The ship is worth $200 million dollars. If the ship sinks,
Socrates loses $200 million. The
4 answers
asked by
Salman
1,912 views
WHAT IS AN EXAMPLE OF DISCRETE DISTRIBUTION AND CONTINUOUS DISTRIBUTIONS?
2 answers
asked by
Twg
503 views
For d f = 5 and the constant A, identify the value of A such that
a. P(x² > A) = 0.90 b. P(x² > A) = 0.10 c. P(x² > A) = 0.95
1 answer
asked by
Marianne
394 views
IF P(A)=40%,P(A OR B)=60%,P(A AND B)=30% WHAT IS P(B)
1 answer
asked by
Christina
298 views
A gumball machine is filled randomly with gumballs:red,green,purple,white,pink and yellow. The company claims the following
2 answers
asked by
Sabrina
747 views
Suppose a random variable X has a cumulative distribution function given by
F(a) = {0 for a<0, 1/2 for 0<=a<1, 3/5 for 1<=a<2,
1 answer
asked by
Julie
1,174 views
How do you predict the probability of an event using trials or simulations? Example please? Thanks. :)
1 answer
asked by
Jen
383 views
Suppose you have $30,000 in wealth and have the choice of two possible gambles:
Gamble 1: a single flip of a coin would pay you
2 answers
asked by
sara
540 views
Markov chain is a stochastic matrix model that based on probability associated with a sequence of events occurring based on the
1 answer
asked by
p
46 views
You and a friend play the following game: You pay your friend $3 each turn and then flip a fair coin. It it’s tails, your
1 answer
asked by
Beena
621 views
A coin is biased such that a head is thrice as likely to occur as a tail. Find the probability distribution of heads and also
1 answer
asked by
mohsin
590 views
3. Probabilistic vs Deterministic Interpretation
1 answer
asked anonymously
123 views
Five males with a particular genetic disorder have one child each. the random variable x is the number of children among the
3 answers
asked by
slomomo
1,917 views
Over time, a student analyzes her ability to guess correctly after narrowing down multiple choice answers in a 5-selection
4 answers
asked by
PetarI
1,852 views
The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past
4 answers
asked by
Mackenzie
1,651 views
And giving probability equation is Px =2x-1/16 where X can be one, two, three, or four. Does this determine the probability
1 answer
asked anonymously
17 views
If you buy one ticket in the Provincial Lottery, then the probability you will win a prize is 0.11 what is the probability that
2 answers
asked by
Sky
1,343 views
65 men 75 women are enfolled in calculus. There are 30 business majors, 40 biology majors, 50 computer science majors, and 20
2 answers
asked by
greg
1,337 views
An experiment consists of selecting a card at random from a 52-card deck.
A black face card (i.e., a jack, queen, or king) is not
2 answers
asked by
Vanny
1,141 views
In a three-channel queuing system, the arrival rate is 1 unit per time period and the service rate is 0.6 unit per time period.
1 answer
asked by
Ellis
1,117 views
A machine used in a production process is set up correctly 97% of the time. Given that the machine is set up correctly, only 5%
1 answer
asked by
Michelle
1,099 views
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