Friday
April 25, 2014

Search: math..probabilities

Number of results: 87,668

7th Grade Math stuffs
Compare probabilities of independent and probabilities of dependent events. Any examples???
Thursday, January 17, 2013 at 10:41pm by lazyburrito

Math
Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
Saturday, December 1, 2012 at 3:17pm by James

math
A single card is selected from an ordinary deck of cards. The sample space is shown in the figure below. Find the probabilities. (Enter the probabilities as fractions.) (a) P(two of diamonds) 1 (b) P(two) 2 (c) P(diamond) 3
Friday, June 7, 2013 at 12:24am by Jean Claude

math probablity- Respond as soon as possible
Assume a family is planning to have three children. 1. Why do probabilities centered around this scenario represent the same probabilities as those for flipping three coins
Friday, April 26, 2013 at 10:28pm by Angela

Probability
Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
Saturday, December 1, 2012 at 7:34pm by James

Probability
Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
Sunday, December 2, 2012 at 2:00pm by Kelsey

Help with Calculating Probabilities
Anon: Do you know how to calculate probabilities like P10, P20, P30...? I do not understand lot of this statistics stuff and desperately need help. Thanks
Thursday, September 13, 2012 at 10:12pm by Bev

Stats
If there are only two possible outcomes to an experiment then... A.) the two corresponding probabilities must each be.50. B.) the two corresponding probabilities could be any numbers between 0 and 1, but must add up to 1. C.) the two corresponding probabilities could each be ...
Wednesday, November 2, 2011 at 9:33pm by Mandy

statistics
A professional gambler claims that he has loaded a die so that the outcomes of 1,2,3,4,5,6 have corrresponding probabilities of 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6. Can he actually do what he has claimed? Is a probablility distrubion described by listening the outcomes along with...
Sunday, May 29, 2011 at 11:51pm by Jessica

math
you roll a number cube. what are the odds in favor of rolling a 1 or a 5?thanks. There are 6 sides of a cube. You want one of 2 numbers to show up. So it's 2/6 chance....or 1/3 Matt I assume that you are talking about a die (Singular for "dice"), it has a total of 6 sides. ...
Friday, April 13, 2007 at 1:16pm by dillon

math
Three boxes, labeled A,.B. C, contain 1 red and 2 black balls, 2 red and 1 black balls, and 1 red and 1 black ball, respectively. Compute the terminal probabilities by using the multiplication technique. Then add the terminal probabilities for all the outcomes in which the ...
Sunday, July 7, 2013 at 10:39am by Annonymous

Statistics
Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
Saturday, May 10, 2008 at 11:24pm by Danny

Statistics
Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
Sunday, May 11, 2008 at 10:14am by Danny

Statistics-Matrix of Transition Probabilities
Given the following matrix of transition probabilities, write three equations that, when solved, will give the equilibrium state values. P = large bracket with a b on top and c d directly under that, closed large bracket. Thanks.
Monday, February 6, 2012 at 8:13am by Lisa

math
Find the requested probabilities. P(B) = 1/5
Tuesday, September 11, 2012 at 9:30am by Anonymous

harvard
6. For Design 3, consider the probability of a random individual in South Dorchester being sampled; and the probability of a random individual in Harbor Islands being sampled. These probabilities are approximately the same as the probabilities calculated using:
Saturday, December 8, 2012 at 4:05am by jasonsie

Statistics
A roster contains the names of 12 students from the School of Math, Science and Engineering (MSE) and 8 students from the Dreeben School of Education (DSE). Determine the probabilities of randomly selecting the following if the selection is done without replacement: A) An MSE ...
Monday, March 7, 2011 at 9:11pm by James

Mathematics
Please help... In a 200 m swimming race between 8 boys, the probability of Omar winning the race if he is in one of the two outside lanes is 1/4. If he is in any of the other lanes, the probability of Omar winning is 1/3. If the lanes are drawn at random, what is the overall ...
Tuesday, May 29, 2007 at 1:37pm by Elizabeth

math
If A and B are independent events, P(A) = 0.35, and P(B) = 0.55, find the probabilities a) P(A intersected B) b) P(A united B)
Monday, February 28, 2011 at 8:06pm by sam

Finite Math
Let A,B be events in a sample space. you are given the following probabilities: P(A)=0.8, P(B|A)=0.3, P(B|A^c)=0.8 Find: 1) P(B) 2) P(A|B) 3) P(A^c|B^c)
Monday, July 23, 2012 at 1:11am by Preet

Math/230
A 350 word response how to compute probabilities using z score
Thursday, March 14, 2013 at 2:27pm by Mike

math
Could someone please describe two main differences between classical and empirical probabilities.
Thursday, February 17, 2011 at 11:26pm by Dave

Math
A license plate is to consist of two letters followed by three digits. How many different license plates are possible if the first letter must be a vowel, and repetition of letters is not permitted, but repetition of digits is permitted? For the first letter, how many vowels ...
Sunday, March 25, 2007 at 7:25pm by Carlos

math
Assume that your sample space is S = {O1, O2, O3, O4, O5, O6 } with associated weights (probabilities) w1 = 0.15, w2 = 0.25, w3 = 0.10, w4 = 0.20, w5 = 0.15, and w6 = 0.15. Determine the probability of the following events: {O3 }∩{O5 }:
Wednesday, September 29, 2010 at 8:00pm by Tiff

Math
Random variable X is normally distributed with mean 10 and standard deviation 2. Compute the following probabilities. a. Pr(X<10) b. Pr(X<11.04) I don't know where to start.
Thursday, November 10, 2011 at 2:33am by Sally

Math
in a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely?
Sunday, January 24, 2010 at 4:41pm by Judy

Math Probabilities
P(A or B) = P(A) + P(B) − P(A and B) when 1. A and B are mutually exclusive 2. A and B are complements 3. A and B occur together 4. A and B are dependent I am pretty confused on this one help will be great :)
Sunday, September 29, 2013 at 10:50am by Alex

math
A and B are events defined on a sample space, with the given probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A | B) = 0.43 and P(B) = 0.75
Tuesday, May 28, 2013 at 4:20pm by DeeDee

Math/Statistics
A and B are events defined on a sample space, with the given probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A | B) = 0.43 and P(B) = 0.75
Wednesday, May 29, 2013 at 10:44pm by Nora

Probability
There are three investment plans for your consideration. Each plan calls for an investment of $25,000 and the return will be one year later. Plan A will return $27,500. Plan B will return $27,000 or $28,000 with probabilities of 0.4 and 0.6, respectively. Plan C will return $...
Sunday, February 1, 2009 at 8:35pm by Julie

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Thursday, November 15, 2012 at 8:46pm by Andrew

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Saturday, November 17, 2012 at 8:41am by Katarzyna

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Sunday, November 18, 2012 at 12:19pm by Katarzyna

Math
I'm not sure how to do this question. Consider the experiments involving rolling a single die once. Give the probabilities of the event described. What is P (even or prime)?
Monday, December 6, 2010 at 9:54am by Rena

statistics math
MEAN É =10 & STANDARD DEVIATION É–=2. FIND THE PROBABILITIES: 9.4 Āŕ X Āŕ 10.6 i have 2 different answers but am checking the answer. thank you one is 0.6179 the other is 0.2358
Tuesday, March 8, 2011 at 12:10am by Jeannie

Math
If independent events have probabilities p and q, what are the odds of at least one of the events occurring?
Tuesday, February 22, 2011 at 4:49am by Brian

math
each set of probabilities is associated with a rolling cube. What numbers are marked on the faces of each cube? P(2)=1/3 P(4)=1/3 P(6)=1/3
Friday, March 23, 2012 at 4:42pm by Max

accounting
A city is served by two newspapersóthe Tribune and the Daily News. Each Sunday reader purchases one of the newspapers at a stand. The following transition matrix contains the probabilities of a customerís buying a particular newspaper in a week, given the newspaper purchased ...
Tuesday, November 15, 2011 at 5:19pm by Zanobia

Math/Statistics
Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.32, P(B) = 0.36, P(A | B) = 0.24
Tuesday, May 28, 2013 at 4:21pm by Nora

Math/Statistics
Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.32, P(B) = 0.36, P(A | B) = 0.24
Wednesday, May 29, 2013 at 10:43pm by Nora

math
In a game, a player tosses a coin 4 times. If the player gets 3 or 4 heads, he/she wins. What is the theoretical probability of winning this game? I just need to know the outcomes. I don't know how to get them. Please and Thank you. Coin 1: 50% Heads Coin 2: 50% Heads Coin 3: ...
Wednesday, May 30, 2007 at 6:18pm by Angela

math
if 20%of the people in school use the emergency room at the hospital in one year. find the probabilities for a sample of 8 people
Monday, December 3, 2012 at 12:55pm by Anonymous

math
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Saturday, November 17, 2012 at 3:01pm by Katarzyna

math
For each value of z*, find the cumulative probability P(Z< or equal to z*). (Round all answers to four decimal places.) z*=0 z*=0.3 z*=-0.3 z*=1.84 z*=-2.38 z*=2.78 z*=1.67 you may need to use the table for standard normal probabilities
Sunday, October 17, 2010 at 3:35pm by Kaylynn

probabilities
z < .05=
Wednesday, August 4, 2010 at 12:07pm by Felicia

MATH
Consider a population with and . (A) Calculate the z-score for from a sample of size 13. (B) Could this z-score be used in calculating probabilities using Table 3 in Appendix B of the text? Why or why not?
Sunday, December 4, 2011 at 6:45pm by deandra

Math
Here's a really tough question on Probabilities which I found on SnapQuiz! snapquiz.sg/viewQuestion.html?id=277 Is anyone able to explain the answer better?
Friday, April 4, 2014 at 1:58pm by Geoffrey

math
a single die isrolled, find the probabilities of: a) P( an odd number greater than 1) b) P(number less than 5) c) P(the number 3 or 7)
Thursday, October 23, 2008 at 2:14pm by joey

MATH!!
Andy, Barbara and Chrisy play a game. Their probabilities of winning are 1/2, 1/3, and 1/6 respectively. What is the probability that each wins exatly one of the first three games played? Express your answer as a common fraction.
Tuesday, April 2, 2013 at 6:42pm by shaun

math
hi i did this problem and i just want to know if its right. 3 coins are flipped , find the following probabilities: a) P(2 heads) b) P( at most 2 heads) c) P(no heads) i got a) 1/4 b) .75 c) 5/8
Saturday, November 1, 2008 at 6:13pm by helpme

Alegbra help
Find the requested probabilities. P(B) if P(B)=1/5
Friday, September 9, 2011 at 8:33pm by Anonymous

probability
Let Y=X2. Calculate the following probabilities: P(Y=0)= P(Y=1)= P(Y=2)=
Thursday, February 27, 2014 at 5:52pm by lin

math
sorry im real bad at probability. a single die is rolled. find the probabilities: a) P(odd numbers greater than 1) b) P(number less than 5) c) P(the number 3 or 7) i got a) 1/3 b) 1/2 c) 1/6 is that right please help.
Saturday, November 1, 2008 at 6:21pm by helpme

Math
Let X be the number of successes in five independent trials of a binomial experiment in which the probability of success is p = 3/5. Find the following probabilities. (Round your answers to four decimal places.) (a) P(X = 4) (b) P(2 ≤ X ≤ 4)
Sunday, January 27, 2013 at 4:23pm by Bersy

probabilities
What is the probability of obtaining tails or a five
Wednesday, June 5, 2013 at 5:41pm by Anonymous

math: probabilities
Three regular six-sided dice are tossed in succession. What is the probability that all three outcomes are different? Choose from the following Answers: 5/9 25/36 2/3 1/192 How do I even begin with this problem?
Wednesday, June 2, 2010 at 5:29pm by M.A.

statistics
How can the concept of probabilities be used in the nursing profession?
Tuesday, June 1, 2010 at 8:41am by cortez

Statistics
Normal probabilities. 11% of all observations are less than z
Saturday, September 24, 2011 at 10:59pm by Mariana

statistics
Identify why this assigbment if probabilities cannot be legitimite: P(A)=0.4, P(B)=0.3, P(AandB)= 0.5
Saturday, November 5, 2011 at 3:35am by yvonne

Math
I have a work sheet on probabilities. IMPOSSIBLE (0) UNLIKELY (1/4) EQUALLY LIKELY (1/2) LIKELY (3/4) CERTAIN (1) I have to write at least two things under each listed, and I don't know how to do this
Tuesday, October 12, 2010 at 4:49pm by Aliyah

math
Break a stick of length 1 at a uniform location and then choose either of the two parts with equal probabilities. If X denotes the length of the part you choose, compute E[X] and var(X).
Friday, May 3, 2013 at 3:38am by hsuan

math 157
Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table.
Wednesday, April 7, 2010 at 1:07pm by Anonymous

math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 pm. and 6 pm. on Friday afternoons is 0,1,2, or 3, with probabilities of 0.84, 0.13. 0.02, and 0.01. What is the expected value for the random variable given the number of accidents?
Saturday, September 11, 2010 at 10:29am by Sarah

Math
In the question I am working on, there are three jars filled with balls, and a die. Depending on the number that comes up from the die determines which jar a ball is drawn from. I created a tree and have all my individual probabilities. The question asks the probability of a ...
Thursday, October 13, 2011 at 12:04pm by Zorniac

Math-probability
Am I right? Did I write the solution the right way or do I need to put 50% or 50%? consider the experiments involving rolling a single die once. Give the probabilities of the event described. What is P (even or prime)? Would my answer be P(e)=3/6 or P(p) = 3/6
Tuesday, April 27, 2010 at 1:14pm by bwb

statitics
Evaluate these binomial probabilities a. C82 (.2)2 (.8)6 b. C81 (.2)1 (.8)7 c. C80 (.2)0 (.8)8 d. P(X ≤ 1), when n = 8, p = 0.2
Sunday, October 17, 2010 at 5:35pm by Anonymous

Probability
Let A and B be events in a sample space S such that P(A) = 0.6, P(B) = 0.4, and P(A B) = 0.27. Find the probabilities below P(A|B)
Monday, February 28, 2011 at 8:30pm by Anonymous

ALGEBRA
Find the requested probabilities. $$ P(\overline{A}) \ \text{if} \ P(A) = {\color{red}0.9} $$ P(A) =
Sunday, June 3, 2012 at 9:33pm by Urgen please help

Math Statistics
A bag contains 13 marbles; 3 blue, 2 green and 8 red. Without replacement find the following probabilities. a) P(both have the same color) b) P(different colors) c) P(G2|R1) d) P(G2 or R2) e) P(no red marbles) f) P(G2 and B2)
Friday, March 2, 2012 at 3:42pm by Nichole

Math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m and 6p.m on Friday afternoons is 0,1,2,or 3 with probabilities of 0.84, 0.13, 0.02 and 0.01, respectively. What is the expected value for the random variable given the number of ...
Friday, August 14, 2009 at 3:34pm by B.B

math
The lottery payoff in a letter game at a church social is determined by the single letter the winner holds. There are four letters, A, B, C, and D. The probabilities that each will be drawn are 1/2, 2/10, 4/10 and 3/10 respectively. The payoffs are $2 for an A, $4 for a B, $8 ...
Thursday, August 19, 2010 at 11:25pm by Anonymous

posibility
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Friday, November 16, 2012 at 8:35pm by Allen

Statistics
5.22) A survey of employees at a large company found the following relative frequencies for the one-way distances they had to travel to arrive at work: Number of Miles (One-way) A B C D E F °‹5 6-10 11-15 16-20 21-30 °›31 Relative Frequency 0.38 0.25 0.16 0.09 0.07 0.05 a. ...
Monday, July 20, 2009 at 3:29pm by Yamil

statistics
Which of the following numbers could not possibly be probabilities? justify your answer a)0.124 b)1 c)-0.1142 d)0 e)2/7 f)6/5 g)2.8
Tuesday, February 5, 2008 at 7:29pm by mary

Probabilities
There are 10 contestants in a scrabble tournament. The number of ways in which the 3 finalists can be chosen is closest to?
Friday, May 1, 2009 at 10:37pm by Andrey L

statistics
if 20% of the people in a community use the library in one year, find these probabilities
Monday, August 8, 2011 at 8:13am by krys

business statistics
Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?
Wednesday, November 14, 2012 at 12:12pm by Alicia

Statistics
True or False All probabilities can be expressed as decimal values ranging from 0 to 1.00.
Thursday, December 5, 2013 at 6:54am by Lyndyc

Determining Probabilities
If a spinner has 10 equal-sized sections, which of the following will be false? P(1) = 10% P(not 1) = 10% P(2) = 10% P(not odd) = 50%
Tuesday, February 18, 2014 at 1:41pm by Jamar

math - probability
Imagine a LONG bike with a total of 4 wheels - 2 in the front and 2 in the back. For the bike to work at all, at least 1 front wheel and 1 back wheel must be operational. All 4 tires are the same and each, individually, has probability 'p' of failing. What is the probability ...
Friday, November 3, 2006 at 9:54am by andrew

MATH
Three coins are flipped. Find the probabilities a. p(two heads)= b. p(at most two heads)= c. p(no heads)=
Sunday, November 2, 2008 at 9:39am by Marie

math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
Tuesday, August 11, 2009 at 4:11pm by Anonymous

Math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.p and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value for...
Tuesday, March 30, 2010 at 12:12am by Iris

MATH
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
Thursday, April 1, 2010 at 10:59am by Tyga

Math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3,with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value for...
Tuesday, May 18, 2010 at 12:43pm by Felicia

MATH Prob.
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
Wednesday, August 12, 2009 at 12:01am by Twg

math/graphing
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
Thursday, October 22, 2009 at 12:42am by jason

Statistics
A loaded die is tossed. Which of the following assignments could be made for the probabilities of each simple outcome. P(1) = .2 P(2) = .2 P(3) = .2 P(4) = .1 P(5) = .1 P(6) = .1 P(1) = .2 P(2) = .3 P(3) = .1 P(4) = .1 P(5) = .1 P(6) = .0 P(1) = .1 P(2) = .1 P(3) = .1 P(4) = ....
Thursday, November 24, 2011 at 10:54pm by Brea

statistics
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z -1.0) P(z -1.0) P(z -1.5) P(z -2.5) P(-3 < z 0)
Saturday, April 5, 2014 at 11:42pm by Vanessa

statistics
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z -1.0) P(z -1.0) P(z -1.5) P(z -2.5) P(-3 < z 0)
Sunday, April 6, 2014 at 9:02pm by Vanessa

statistics
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z -1.0) P(z -1.0) P(z -1.5) P(z -2.5) P(-3 < z 0)
Monday, April 7, 2014 at 5:13pm by vanessa

statistics
3coins are tossed calculate the followin probabilities p(3heads) p(2heads and 1 tail) p(3 tails)
Sunday, April 20, 2014 at 5:20am by shumaila.imtiaz

math
3 coins are flipped, find the probabilities of: a) P(two heads) b) P(at most two heads) c) P(no heads)
Thursday, October 23, 2008 at 2:09pm by joey

Math
Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
Thursday, February 14, 2013 at 10:08am by Leslie

Math
Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
Thursday, February 14, 2013 at 10:13am by Leslie

posibility
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
Saturday, November 17, 2012 at 9:13am by Katarzyna

Physics
Can someone explain why electrons cannot exist in orbitals and why we need to describe their location in terms of probabilities.
Thursday, June 6, 2013 at 12:27am by Anonymous

Quantitative Analysis for business
Key considerations as Allied develops its strategy for disposing of the case are the probabilities associated with Johnís response to an Allied counteroffer of $400,000 and the probabilities associated with the three possible trial outcomes. John will accept a counteroffer of...
Friday, March 25, 2011 at 12:23am by Vanessa

math
A machine prints out the number 1, 2, or 3 with equal probabilities. A machine starts printing numbers independently one after another and stops the rst time it prints 1. Let X denote the number of 2s it printed. Compute E[X] and var(X).
Friday, May 3, 2013 at 3:38am by hsuan

Statistics
True or False Probabilities may take on negative values only when the events are occurring less than 50% of the time.
Monday, February 22, 2010 at 9:48pm by Ric

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