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probabilty

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Probabilty
The public transport system is aware that one person in twenty does not buy a ticket for their trip. The manager decides to challenge 200 travelling people as to charger they have a valid ticket or not. (a) calculate the probabilty that everyone had a ticket, (b) calculate the...

Probability
The public transport system is aware that one person in twenty does not buy a ticket for their trip. The manager decides to challenge 200 travelling people as to charger they have a valid ticket or not. (a) calculate the probabilty that everyone had a ticket, (b) calculate the...

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes? c.what is the probabilty that a diver stays under between 25 and 50? d. what is the ...

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes? c.what is the probabilty that a diver stays under between 25 and 50? d. what is the ...

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes? c.what is the probabilty that a diver stays under between 25 and 50? d. what is the ...

Math
A vase had 4 yellow flowers, 4 red flowers and 8 blue flowers. Donna takes one out, smells it and returns it to the vase. What is the probabilty she picked a red flower? What is the probabilty she picked a blue flower? Is it red 4:16 and blue 8:16?

probabilty
In a school, 14% of students take drama and computer classes, and 67% take drama Class. What is the probabilty that a students takes computer class given that the student takes drama class? i have no idea how to work this so please show me your work. Thanks!!

math probabilty
how to come up witha simulation

probabilty
Suppose P(A)= .3, P(B)=.4, and the P(A + B) = .12. What is: a.) P(A/B)? b.) P(B/A)? c.) are A and B independent? Explain your answer.

probabilty
Given that P(A) =2/9, what are the odds in favor of A occurring?

PROBABILTY
WHAT IS AN EXAMPLE OF DISCRETE DISTRIBUTION AND CONTINUOUS DISTRIBUTIONS?

9th grade Math
what is the probabilty of spinning a divisor of 12?

math
if you roll a die and toss a coin what is the probabilty? p(heads and 4)

math
suppose that an experiment has four possible outcomes. a,b,c and d. if p(a)= p(b)= p(c) and p(d)= 2p(a) what is the probabilty of each event

Statistics
7 cards drawn from a deck without replacement what is probabilty one is a spade

math
You flip a coin and toss a 1-6 number cube what is the probabilty of getting a 5 and tails

probability
explain the probabilty of one event in a fair game with three possible outcome

maths-probabilty
find the no. of ways in which letters of the word ARRANGEMENT can be arranged so that 2A's and 2R's do not occur together?

maths-probabilty
find the no. of ways in which letters of the word ARRANGEMENT can be arranged so that 2A's and 2R's do not occur together?

probabilty
a box contain contains 50 colours, 24 are red, 17 are blue and 9 are whites. draw a tree to represent the situation.

statistics
if 1 adult male is randomly selected and is assumed to have 20 lb of carry on baggage, find the probabilty that his total is greater than 195 lb

math
a pair of dice is rolled. what is the probabilty of each of the following? a. the sum of the numbers shown uppermost is less than 5. b. at least one six is cast.

Statistics
1. In a certain game, the probability of getting a red outcome is 0.03. Find the probability of getting an outcome that is not red? The answer must be in a decimal. I put 0.97 as the answer ( 1-0.03=0.97) 2. The instructor in a Humanities class says that students have a 15% ...

math
a number cube numbered 1 through 6 is rolled.what is the probabilty of rolling a prime number.

statistics
Among the contestants in a competition are 44 women and 26 men. if 2 winners are randomly selected, what is the probabilty that they are all men?

math
5 blue and 3 green what are probabilty of getting blue

Science
What is the probabilty of two tall peas plants, heterzygous for the tall ellele, producing a short pea plant.? A. 75% B. 50% C. 25% D. 0% Is the answer c?

algebra
One type of probabilty used practically everyday is: a) experiental probability b) scientific probability c) frequency of occurence d) None of the above

Physics
If i have ten grains of sand on a flat, 8x8 chessboard, randomly distributed, what is the probabilty that all ten are on the same square?

maths-probabilty
A man has brought tomota and five fruits from market. How many ways he can prepare mixed jam by selecting any 3 fruits excluding tomato

maths-probabilty
A man has brought tomota and five fruits from market. How many ways he can prepare mixed jam by selecting any 3 fruits excluding tomato

Stats
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 numerical probabilities and list the distribution. I got 10/21 for the x value of 2. The others I am unsure about! Help please

math
The faces of a cube are numbered 1-6. If the cube is tossed once, what is the probabilty that a prime number or a number divisible by 2 is obtained.

maths-probabilty
A box contains 5 red balls and 6 black balls. in how many ways can 6 balls be selected so that there are at least two balls of each color?

math probabilty
Find the (theoretical) probability of the given event, assuming that the coins are distinguishable and fair, and that what is observed are the faces uppermost. Six coins are tossed; the result is at most one head.

math (probability)
there are 6 red marbles in a bag. the probabilty of picking a blue marble is 2/7. How many marbles are in the bag?

Find the probabilty
Find the probability of S^2 3.3 1 6.3 49

mamagement operation
The city of Beljing is studying it Toursits Information Center. The Information collected about tourists arriving at the center is: interval time ( time between Arrivals)in minutes:(3,4,5,6,7)Probabilty percentage(20.2,23.6,31.2,18.4,6.6) The tourist receive service at one ...

math
two students are playing with a six-sided number cube. the probabilty of tossing a number greater than 13 and less than 24 is 6/6 or 1. what are the possible numbers on the cube?

maths-probabilty(urgently needed)
A box contains 5 red balls and 6 black balls. in how many ways can 6 balls be selected so that there are at least two balls of each color?

math
the probability that a radomly chosen potential customer will make a purchse is 0.20if a sales man calls on 6 customers .what is the probabilty they will make exactly 4 sales

statistics
the mean scale score on the mathematics examination of ninth grade students in new york state was 86 with a standard deviation of 5 points. Given a student was selected at random what is the probabilty that his score was 91 or higher?

Statistics
One event A is _________________ of another event B if the probabilty of event A has occurred given event B is the same as the probability that A will occur with no knowledge of B. disjoint mutually exclusive dependent independent

Math
Your softball team is raffling a stereo system and the total off 800 tickets have been sold. Your family bought 20 tickets. What is the probabilty that your family will not win?

maths-probabilty
A chairman is biased so that he selects his relatives for a job 3 times as likely as others. If there are 3 posts for a job. Find the probability distribution for selection of persons other than their relatives.

maths-probabilty(urgenlty)
A chairman is biased so that he selects his relatives for a job 3 times as likely as others. If there are 3 posts for a job. Find the probability distribution for selection of persons other than their relatives.

math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all made kittens

math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all made kittens

math
consider the stracture with 7 components such that each of them with probabilty p works independently A) find the minimal cut and minimal path sets? B)Find the reliablity for the stracture function?

probability math question
a bag contanins 7 red marbles, 2 blue marbles, and 1 green marble. What is the probabilty of choosing a marble that is not blue?

math
there is a 20% chance that it will snow on tuesday and a 50% chance that it will snow on Wednesday. what is the probabilty that it will snow on either day?

Probabilty
Biased coin has a 0.4 probability of landing on tails. The random variable x, based on a single toss of the coin, is defined as follows: x=0 if heads appears; x=1 if tails appears. What Is the mean value of X? Is it . 0.3 .4 .6 .5 .7

Math
my problem is: From the box containing 5 red balls, 7 blue balls, 10 black balls. you select 4 balls what is the probabilty that EXACTLY 2 balls are black. so i know how to start it c(10,2)c(2,1) ---------- c(22,40 but how do you solve that ?

Probabilty
Suppose i have a deck of 40 cards numbered 1-10 in red, yellow, blue, and green. suppose i am dealt 5 cards. how may cards could be dealt first? 40-5= 35

math 7th grade
We are doing probabilty and if there is a sock draw with 24 socks in there and you want to know the P. of picking 2 white socks. If there are 10 white socks in the draw, how would this work?

math
Marcus and Allen are playing Rock/Paper/Scissors. The first one to win 10 times does not have to do the dishes. The score is now 9 to 7 in favor of Marcus. If ties are ignored and not counted, what is the probabilty Marcus will not have to do the dishes?

probability
A cooking recipe lists 6 ingredients which must be mixed in the correct order. Unfortunately the bottom of the page on which the correct order was given has been burnt off. Suppose that you make a guess at the correct order. What is the probabilty that you will be right? ...

math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all male kittens

PROBABILTY-STATS HELP
A product is assembled from 3 components X,Y,Z and the probability of these components being defective is 0.01, 0.02,0.05. i have to find the probability that the assumed product will not be defective? can someone explain to me, how do it? thanks

Math
an ice cream parlor is giving away free icecream sundaes on opening day. the sundaes are assembled randomly from 7 types of ice cream, 2 types of sauce, and 5 kinds of toppings. find the probabilty.

statistics
mean=20, standard deviation =6.Use the emperical rule to estimate the probabilty that a randomly chosen patient had to wait more than 26 min. Of 2000 patients, estimate the # of patient having to wait more than 26 mins

math
a box contains seven red marbles, five green marbles & eight blue marble. a marble is drawn at random & is replaced. a second marble is then draw from the jar. find the probabilty that both marbles are green

Math
my problem is: From the box containing 5 red balls, 7 blue balls, 10 black balls. you select 4 balls what is the probabilty that EXACTLY 2 balls are black. i know that you start it/set it up like this: c(10,2)c(2,1) divided by c(22,4) and i can get the answer by plugging it in...

math
A bag contains 11 red balls, 9 blue balls and x yellow balls. The probabilty of choosing a yellow ball at random is 1/6. What is the probability of not getting a blue ball.

Algebra 1
Marcus and Allen are playing Rock/Paper/Scissors. The first one to one 10 times does not have to do the dishes. The score is now 9 to 7 in favor of Marcus. If ties are ignored and not counted, what is the probabilty Marcus will not have to do the dishes? Express your answer as...

6th grade math
Gene has less than 12 nickels,dimes,and quarters in his pocket.The probability of pulling out a nickel or a quarter is 3/4.The probabilty of pulling out a dime is 1/4.How many coins does Gene have in his pocket?How many of each does he have?

sixth grade math
Gene has less than 12 nickels,dimes,and quarters in his pocket.The probability of pulling out a nickel or a quarter is 3/4.The probabilty of pulling out a dime is 1/4.How many coins does Gene have in his pocket?How many of each does he have?Please explain

math
Gene has less 12 nickels,dimes,&quarters in his pocket.The probabilty of pulling out a nickel or quarter is 3/4.pulling out a dime is 1/4.How many coins does gene have in his pocket?.how many of each coin does he have?Please explain how you got the answerit will help me alot ...

math
suppose a license plate contains 4 digits.the probability of plate number having an even or an odd digit is the same.what is the probabilty of having a license plate with all even digits.

Pre-calculus
A set of data is normally distributed with a mean of 500 and standard deviation of 40. a). What percent of the data is between 460 and 540? P(460<x<540)=P(-1<z<1) =0.8413-0.1587 =0.6826 b). Find the probabilty that a value selected at random is less than 420. P(x&...

math
Suppose a license plate contains four digits.The probability of a license plate having an even or odd digit is the same.What is the probabilty of having a license plate with all even digits.

elementary statistics
56% of families had no children under the age of 18;17% had no child;18% had two children;6% had three children; and 3% had four or more children. If a family is selected at random, find the probabilty that the family has less than three children(express your answer in percent...

math
a box contains seven red marbles, five green marbles & eight blue marble. a marble is drawn at random & is replaced. a second marble is then drawn from ther jar. find the probabilty that the first marble is red & second is green

statistics
refer to a bag of marbles containing 5 green marbles, 4 red marbles and 2 yellow marbles. Three marbles are drawn from the bag, without replacement. What is the probabilty that all three marbles drawn are green?

Probabilty
There is a large jar of marbles, containing red, blue, yellow, black and white marbles. How many marbles must you draw(without looking) from the jar to be sure of getting at least three of one color? I have a similar question with socks: 10 white, 6 black, how many drawn for ...

Math
While getting dressed for school early one morning, the light in Toni's bedroom burned out. Toni knew he had plenty of clean socks in his drawer, but none of them were matched. He had 24 white socks and 6 blue socks. What is the probabilty of Toni finding 2 white socks or 2 ...

Math
While getting dressed for school early one morning, the light in Toni's bedroom burned out. Toni knew he had plenty of clean socks in his drawer, but none of them were matched. He had 24 white socks and 6 blue socks. What is the probabilty of Toni finding 2 white socks or 2 ...

maths-probabilty
Bag 1 contains 2 white and 3 red balls and bag 2 contains 4 white and 5 red balls. 1 ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn from bag 2

statistics
At a certain college, 15% of the students receieved an A in their required math cousre, 10% receieved an A in their required chemistry course, and 5% receieved an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry ...

maths- probabilty(me posted third time)plse answer
There are two bags out of which Bag 1 contains 2 white and 3 red balls and bag 2 contains 4 white and 5 red balls. 1 ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn from bag 2

decision science
The university computer lab has 10 computers which are constantly being used by students. Users need help from the one lab assistant fairly often. Students ask for help at a Poisson rate of an average of 4 requests per hour for any one computer. the assistant answers questions...

maths-probabilty(URGENTLYYY)
There are two bags out of which Bag 1 contains 2 white and 3 red balls and bag 2 contains 4 white and 5 red balls. 1 ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn from bag 2

maths-probabilty
There are two bags out of which Bag 1 contains 2 white and 3 red balls and bag 2 contains 4 white and 5 red balls. 1 ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn from bag 2

Probabilty & Statistic
A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment is administered to the individuals in the sample, the sample mean is found to be M _ 42. a. How large a sample is necessary for this sample mean to be ...

statistics
Many companies today have a mandatory drug testing policy for their employees. To minimize the cost of testing, sample from 6 people are combined. If the mixture tests negative then all 6 individual employees are also negative. Find the probabilty of a positive result for 6 ...

probabilty
There are 4 baskets. The first basket has 3 apples and 4 oranges, the second one has 4 apples and 5 mangoes, the third one has 6 Mangoes and 2 bananas and the last one has 7 bananas and 2 apples. If a fruit is randomly chosen from any basket and it comes out to be an apple, ...

maths
The probability that Richard beats John at badminto is 0.7. The probability that Richard beats John at sqaush is 0.6. These events are independant. Calculate the probabilty that, in a week when they play one game of badminton and sqaush: a) Richard wins both games b) Richard ...

math probabilty- please help
You spin the spinner twice. draw a tree diagram and list sample spaces to show the possible outcomes. From that answer questions 1,2 and 3. The spinner is 4 equal parts for a, b, c ,d I know the tree diagram- you Have a,b,c,d, and from each of those letters ex. A has four ...

probabilty
Smitty's Bar and Grill has brand name recognition of 61% around the world. Assuming we randomly select 2 people. The assumptions of a Bernoulli process are met. What is the probability a)exacatly 5 of the 12 recognize the name of Smitty's Bar and Grill? b)5 or fewer recognize ...

Probabilty/Statistics
1)A coin is tossed 5 times. Find P(at most 4 tails.) A)3/16 B)13/16 C)1/32 D)31/32 I chose D 2)How many different arrangements of the letters of the word doodle are possible? A)180 B)720 C)15 D)90 I chose B For #3-5, use the following tepereatures from Jan-Dec: 50,48,51,65,77,...

Math probabilty
An amusement park, Dino World, considering adding some new attractions, conducted a study over several typical days and found that, of 10,000 families entering the park, 1020 brought just one child (defined as younger than age 12), 3370 brought two children, 3510 brought three...

Applied Stats
Based on the data collected by the National Centre for health Statistics and made available to the public in the Sample Adult database, it was found that the percentage of adults who have at some point in their life been told that they have hypertension was 24 percent. Suppose...

Statistics
Please help. Find the probability of getting 2 hearts if the cards are drawn from a regular deck and the first card is not replaced. A true/false quiz consists of twenty questions. If a student answers the twenty questions by making random guesses, what is the probability of ...

Statistics
A game at the state fair has a "guesser" guess the month of your birth. You win a prize if he misses your month by more than 2 months (for ex: if you were born in April, and he guesses February, he wins; if he guessed January, you win). For simplicity, assume that all 12 ...

probabilty
When I go to the local music store the probability I can buy any particular CD I want is 2/5, but if I go to the department store in nearby Tadchester the probability is 5/6. I want to buy two particular CDs. What is the probability that (a)I can get them both locally (b)I ...

probabilty
Suppose that when a job candidate comes to interview for a job at, say McDonald's, the probability that the candidate will want the job (A) after the interview is .68. Also, the probability that McDonald's wants the candidate (B) is .36. The probability P(A/B) is .88. a.) Find...

statistics
a study found 37% of a new technique resulted in pregnancy and in that technique 25% resulted in multiple births what is the probabilty that the new technique produced a pregnacy and multiple births what is probability that a random selected pregnancy did not produce multiple ...

statistics
You forget to set your alarm with a probaility of .3. If you set the alarm it rings with the probabilty of .8. If the alarm rings, it will wake you on time to make your first class with the probability of .9. If the alarm does not ring, you wake in time for your first class ...

Algebra
1)An ice cream store has 31 flavors of ice cream and 10 toppings. A regular sundae has 1 flavor of ice cream, 1 topping, and comes with or without whipped cream. How many different ice cream sundaes can be ordered? A)310 B)372 C)620 D)82 I chose C 2)How many 5 digit codes are ...

Statistics
I don't mind you showing me the caluclator key strokes to do this or show me the mathematical way whice ever thanks Here is a simple probability model for multiple-choice tests. Suppose that a student has probability p of correclty ansering a question chosen at random form a ...

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