Friday

April 18, 2014

April 18, 2014

Number of results: 135

**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...
*Thursday, April 29, 2010 at 1:01pm by Anonymous*

**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...
*Friday, April 30, 2010 at 2:09am by Anonymous*

**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 ...
*Monday, November 26, 2012 at 8:31pm by Ashley*

**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 ...
*Monday, November 26, 2012 at 8:31pm by Ashley*

**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 ...
*Monday, November 26, 2012 at 8:32pm by Ashley*

**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!!
*Thursday, March 19, 2009 at 2:37pm by melissa*

**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?
*Thursday, April 15, 2010 at 5:13pm by Dylan*

**probabilty**

IS IT: 2/9 / (1-2/9)= 2/7
*Sunday, May 30, 2010 at 1:55pm by BBABY*

**math**

4/6 probabilty
*Wednesday, September 23, 2009 at 5:31pm by Sarah*

**math probabilty**

a simulation of what?
*Saturday, February 16, 2008 at 11:12pm by drwls*

**Math probabilty**

2.668
*Sunday, July 10, 2011 at 12:13pm by Yuna*

**math probabilty**

This question is incomplete.
*Saturday, February 16, 2008 at 11:12pm by Guido*

**probabilty**

Given that P(A) =2/9, what are the odds in favor of A occurring?
*Sunday, May 30, 2010 at 1:55pm by BBABY*

**probabilty**

If P(A) means probability of A occurring, then it is just 2/9.
*Sunday, May 30, 2010 at 1:55pm by PsyDAG*

**PROBABILTY-STATS HELP**

(1-.01)(1-.02)(1-.05) = ?
*Thursday, April 5, 2012 at 8:07am by PsyDAG*

**math probabilty**

how to come up witha simulation
*Saturday, February 16, 2008 at 11:12pm by chanel*

**PROBABILTY**

WHAT IS AN EXAMPLE OF DISCRETE DISTRIBUTION AND CONTINUOUS DISTRIBUTIONS?
*Wednesday, August 12, 2009 at 10:48pm by Twg*

**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.
*Wednesday, October 7, 2009 at 11:11pm by Sharon*

**probabilty**

if it is 12 people she meant then the answer would be c)
*Friday, September 23, 2011 at 11:51pm by Anonymous*

**math**

if you roll a die and toss a coin what is the probabilty? p(heads and 4)
*Thursday, September 4, 2008 at 4:47pm by kelly*

**9th grade Math**

what is the probabilty of spinning a divisor of 12?
*Wednesday, August 18, 2010 at 8:53pm by Brett*

**Probabilty**

For each coin toss, the probability of x=1 is 0.4. The mean value of X for n tries is : (0.4(1)*n)/n = 0.4
*Wednesday, November 28, 2012 at 12:00pm by Jennifer*

**Statistics**

7 cards drawn from a deck without replacement what is probabilty one is a spade
*Wednesday, February 17, 2010 at 8:48pm by C.O.*

**Math**

Since the probabilty of A and B is zero, A and B cannot both happen at the same time. Therefore P(A or B) = P(A) + P(B) = 5/6
*Wednesday, August 5, 2009 at 6:43pm by drwls*

**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
*Friday, March 19, 2010 at 3:23pm by walls*

**math**

You flip a coin and toss a 1-6 number cube what is the probabilty of getting a 5 and tails
*Sunday, February 13, 2011 at 6:02pm by sue*

**Statistics**

what is the probabilty of a sample of 25 houses will be tetween 145 and 160 days
*Wednesday, October 17, 2007 at 2:24pm by Anonymous*

**probability**

explain the probabilty of one event in a fair game with three possible outcome
*Tuesday, May 3, 2011 at 5:54pm by nathan*

**probabilty**

I will be glad to critique your thinking. Hopefully, you have learned something from previous answers provided to you.
*Wednesday, October 7, 2009 at 11:17pm by drwls*

**Quick Question**

Quantm physics treats matter as probabilty wave. Quantum mechanics is the same thing.
*Monday, May 11, 2009 at 6:32pm by drwls*

**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?
*Monday, March 11, 2013 at 4:24pm by anoynomous*

**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?
*Monday, March 11, 2013 at 5:37pm by anoynomous*

**maths-probabilty**

5*4*3/(1*2*3)= 10 ABC BCD ABD BCE ABE BDE ACD CDE ACE ADE
*Tuesday, March 12, 2013 at 1:55am by drwls*

**Probabilty/Statistics**

i need to learn probability & statistics. completly.
*Friday, February 8, 2008 at 4:02pm by sai*

**math**

a number cube numbered 1 through 6 is rolled.what is the probabilty of rolling a prime number.
*Wednesday, May 11, 2011 at 2:16pm by cameron*

**math**

5 blue and 3 green what are probabilty of getting blue
*Tuesday, April 19, 2011 at 10:01pm by debbie*

**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?
*Wednesday, July 14, 2010 at 9:37pm by Mike*

**algebra**

One type of probabilty used practically everyday is: a) experiental probability b) scientific probability c) frequency of occurence d) None of the above
*Thursday, October 8, 2009 at 8:52am by Philine*

**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?
*Friday, October 8, 2010 at 8:44pm by Jessica*

**probabilty**

I have a strong feeling that you have a typo, and that you meant to say, "Assuming we randomly select 12 people. " Please confirm.
*Friday, September 23, 2011 at 11:51pm by Reiny*

**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
*Monday, March 11, 2013 at 4:37pm by anoynomous*

**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
*Tuesday, March 12, 2013 at 1:55am by anoynomous*

**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
*Wednesday, November 9, 2011 at 5:48pm by Kristie*

**probabilty**

i think it is b) beacuase thet had only asked 2 people how can they get results by asking two people they have to ask more than 2 people to see.
*Friday, September 23, 2011 at 11:51pm by Anonymous*

**probabilty**

i think it is b) beacuase thet had only asked 2 people how can they get results by asking two people they have to ask more than 2 people to see.
*Friday, September 23, 2011 at 11:51pm by Anonymous*

**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% ...
*Sunday, September 29, 2013 at 7:27pm by Lisa *

**Algebra**

You would multiply them to show the number of different combonations you can get for this event, but it would also show the probabilty.
*Thursday, December 18, 2008 at 5:17pm by RED FIRE*

**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.
*Wednesday, September 28, 2011 at 10:47pm by Anonymous*

**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?
*Monday, October 29, 2012 at 11:49pm by Anonymous*

**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?
*Tuesday, March 12, 2013 at 11:51am by anoynomous*

**please tell teachers what the subject is - needs probabilty and stats**

I showed you how to do the last one, am leaving this more complicated version of the classic prisoner's dilemna problem for a stats teacher (I do physics)
*Saturday, September 29, 2012 at 6:53pm by Damon*

**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?
*Tuesday, March 12, 2013 at 2:43pm by anoynomous*

**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
*Tuesday, February 9, 2010 at 8:03pm by Karmen*

**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.
*Sunday, December 5, 2010 at 12:10am by Liz*

**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
*Wednesday, May 8, 2013 at 2:38pm by collins*

**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?
*Monday, September 13, 2010 at 11:09pm by Darlene*

**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
*Thursday, November 15, 2012 at 12:22pm by John*

**maths- probabilty(me posted third time)plse answer**

I know the probability of drawing red from the second bag = 5/9, but I don't know how to discount not drawing from the first bag. That is why I did not respond to you previously.
*Tuesday, March 19, 2013 at 2:58pm by PsyDAG*

**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.
*Sunday, March 17, 2013 at 2:32am by anoynomous*

**Statistics**

In a recent survey, 70% of the community favored building a haelth center in their neighborhood. If 14 citizens are chosen, find the probabilty that exactl 6 of them favore the building of the health center.
*Tuesday, November 9, 2010 at 4:19pm by Anonymous*

**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?
*Monday, February 6, 2012 at 7:06pm by Nicole*

**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.
*Saturday, March 16, 2013 at 4:00pm by anoynomous*

**Math Probabilities**

there were 6 red beans and there was 12 greens beans and 5 yellow beans then 10 blues so what is the probabilty that sandra will pick red?
*Tuesday, March 6, 2007 at 2:16pm by chelsea*

**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?
*Saturday, February 9, 2013 at 3:43pm by kelly*

**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?
*Sunday, April 28, 2013 at 7:34pm by j*

**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?
*Sunday, March 23, 2014 at 4:55pm by Anonymous*

**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
*Friday, November 6, 2009 at 5:12pm by Katherine*

**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
*Friday, November 6, 2009 at 5:13pm by Katherine*

**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?
*Thursday, May 10, 2007 at 3:57pm by skl*

**go with bob MATH**

Go with bobpursley's solution I found the probabilty that at least two people in the class will have picked the same number, not just the number that you picked.
*Saturday, March 16, 2013 at 8:56pm by Reiny*

**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 ...
*Monday, September 12, 2011 at 7:43pm by cindy*

**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
*Wednesday, November 28, 2012 at 12:00pm by Gilbert*

**Probabilty/Statistics**

coin die (coin,die h t
*Friday, February 8, 2008 at 4:02pm by hope*

**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?
*Tuesday, April 13, 2010 at 8:49pm by anonymous*

**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
*Thursday, April 5, 2012 at 8:07am by Taskeen*

**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
*Friday, November 6, 2009 at 5:19pm by Katherine*

**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?
*Thursday, November 19, 2009 at 9:28pm by Matt*

**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.
*Friday, March 7, 2014 at 11:13am by adam*

**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? ...
*Wednesday, March 10, 2010 at 8:03am by Anonymous*

**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 ?
*Monday, December 13, 2010 at 7:34pm by Katia*

**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.
*Tuesday, November 19, 2013 at 8:52am by danial*

**math**

Two out of 14 are green. That is 1/7 probability, on the first draw. The probabilty of NOT getting green three times in a row, without replacement, is (6/7)(11/13)(10/12) = 0.6043660 The probability of getting one or more green is 1 minus that number = 0.3956
*Tuesday, August 4, 2009 at 1:11am by drwls*

**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?
*Thursday, April 14, 2011 at 9:30pm by mike T*

**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
*Friday, April 15, 2011 at 9:26pm by mike T*

**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...
*Monday, November 16, 2009 at 9:51pm by Zach*

**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 ...
*Thursday, April 14, 2011 at 5:19pm by mike *

**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
*Monday, November 12, 2012 at 9:59am by Anonymous*

**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.
*Friday, November 6, 2009 at 4:41pm by Katherine*

**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...
*Monday, December 13, 2010 at 8:17pm by Katia*

**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.
*Saturday, November 7, 2009 at 9:52pm by melrose*

**Stats **

For an individual bulb, the probability of a life between 105 and 115 hours is 0.1974. I used a normal probability calculator to get that. For 35 bulbs, the mean of the average remains 110 but the standard deviation is 20/sqrt35 = 3.38. The probabilty of the mean being between...
*Monday, January 31, 2011 at 3:45am by drwls*

**Maths- Probabilty**

We do not do your homework for you. However, I will give you a start. i) The probability of picking a first gold marble is 5/8, since there are 5 gold marbles among the eight total. If you do not replace it, 4 gold marbles are among the remaining 7. The probability of two or ...
*Friday, February 19, 2010 at 2:55am by PsyDAG*

**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?
*Sunday, March 14, 2010 at 8:11pm by keisha*

**PROBABILTY**

http://stattrek.com/Lesson2/DiscreteContinuous.aspx
*Wednesday, August 12, 2009 at 10:48pm by Ms. Sue*

**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
*Wednesday, March 20, 2013 at 1:07pm by anoynomous*

**maths-probabilty**

number of arrangements without any restriction = 11!/(2!2!2!2!) ----- 2 R's, 2 A's, 2 E's and 2N's = 2494800 Assume the 2R's and the 2A's as unique elements so we have 9 elements to arrange, but we still have the 2 E's and the 2 N's number of ways to arrange = 9!/(2!2!) = ...
*Monday, March 11, 2013 at 5:37pm by Reiny*

**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 ...
*Thursday, June 24, 2010 at 11:28pm by Melisa*

**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...
*Saturday, March 3, 2012 at 8:32pm by goldielocks*

**calculus**

That would be one MINUS the probabilty of NOT having an accident 50,000 trips in a row. That is equal to P = 1 - (1/4*10^6)^50,000 = 1 - (0.99999975)^5*10^4 = 1 - .9876 = 0.0124 , or 1 in 80. This must refer to FATAL accidents. Most drivers have at least one accident during ...
*Monday, September 8, 2008 at 11:45pm by drwls*

**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 ...
*Sunday, October 4, 2009 at 6:06pm by Sharon*