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Probability & Statistics/Questions Answered by Expert Surajit Basu
| Subject | Date Asked |
| probability | 4/18/2009 |
| Q: "a box contain 6 red ,4 white,and 5 black balls.a person draws 4 balls from the bo at random.find ... A: 1. How many different selections are possible? There are 6 red ,4 white,and 5 black balls. a person ... | |
| Maths statistics probability | 10/21/2008 |
| Q: A boy recieves a school report card each week. He is given a special treat whenever whenever his ... A: Event: GB = getting "good behaviour" . P(GB) = 0.6. Event: EH = doing excellent homework if GB, ... | |
| Probability | 10/17/2008 |
| Q: What is chance? A: something may happen or not happen. i toss a coin: it may land heads, or tails. will it rain today ... | |
| A | 9/2/2008 |
| Q: I would really appreciate your help on the following query: I am looking at quarterly data from ... A: it is tough to make a generic statement. if the seasonality is high, e.g. with sales curves which ... | |
| Estimating Probability | 6/21/2008 |
| Q: In a study of 685 cars in a parking lot, there were only 3 different types: sedan, sports car and ... A: I wont answer the question fully, I will guide you. How many sedan or sports cars are there? ( 685 ... | |
| stan 111 | 6/18/2008 |
| Q: a class consists of 8 boys and 6 girls, a committee of three persons is to be constituted fromthe ... A: 1. a class consists of 8 boys and 6 girls, a committee of three persons is to be constituted from ... | |
| Probability | 5/26/2008 |
| Q: Synopsis: A survey found that 23% of respondents stick with their tour group. (No total number of ... A: In a sample of 10 travelers, what is the probability that NONE will stick with their group? That ... | |
| math | 5/24/2008 |
| Q: these are really basic questions for the praxis test. thank you. How do I find out what fractions ... A: if you want to know if any two factions a/b and c/d are equivalent, you can check if a*d = b*c are ... | |
| Probability | 5/19/2008 |
| Q: 30 out of 100 boys and 36 out of 100 girls knows the answer to the question that their teacher ... A: How many students are there ? 200 ? And is the number of boys and girls the same? Assume so. Then ... | |
| Probability | 5/18/2008 |
| Q: A die is thrown 20 times and a success is defined as a one or a six on the upface of the die. Use ... A: what are the chances of getting a one/six ? 2 out of 6 ways. So probability of success = p(E) = 2/6 ... | |
| Probability | 5/17/2008 |
| Q: When Susan and Jessica play a card game, Susan wins 60% of the time. If they play 9 games, what is ... A: If they play 9 games, what is the probability that Jessica will have won more games than Susan? ... | |
| probability question: shuffling a deck of playing cards... | 5/12/2008 |
| Q: A man sits and shuffles a deck of 52 playing cards. He shuffles quickly: he mixes the cards into a ... A: How many combinations/orders are there? Well, the first card can be in 52 ways, the second in 51 ... | |
| statistics | 5/11/2008 |
| Q: 9% of men are color blind. for four randomly selected men, the probability that nore are color ... A: i assume you mean NONE when you say "nore" If all four are NOT colour blind, then Person 1 is not ... | |
| Probability | 5/9/2008 |
| Q: To encourage people to shop at their store, Penny and Joan offer a reward to every tenth customer ... A: Sorry for the delay, i somehow missed your question. the chance of getting the reward in 1 visit is ... | |
| calculating odds | 5/6/2008 |
| Q: What are the odds that an individual would answer 16 consecutive questions on an intelligence test ... A: let's take q 1. There are six answers: A,B,C,D,E,F. You can choose one of these 6. There is only 1 ... | |
| Probabilities associated with the tossing of dice | 5/5/2008 |
| Q: I toss a die 5 times, and record the outcomes to X1,X2,X3,X4,X5. In MS Excel I simualate random ... A: Y = X1 + X2 + X3 + X4 + X5 assume you mean average values of X1, X2 etc. What is P(Y<=17) ? i.e. ... | |
| probability by percentage | 5/4/2008 |
| Q: two items (A & B) are randomly placed in a location. "A" has 49 possible locations and "B" has 34 ... A: think of the 7 locations: 7 locations: all of which "A" could be in and 3 of which "B" could be in. ... | |
| Probability | 4/23/2008 |
| Q: A drawer contains 50 bolts and 150 nuts. Half of the bolts and half of the nuts are rusted. If one ... A: A drawer contains 50 bolts and 150 nuts. Half of the bolts and half of the nuts are rusted. There ... | |
| Group assignment on probability | 4/20/2008 |
| Q: A random sample of 6IC'S is taken from a large consignment and tested in two independent stages.The ... A: The probability that an IC will pass either stage is p. All the 6 ICS are tested at the first stage. ... | |
| probability | 4/11/2008 |
| Q: suppose that A and D are independent event such that the probability that neither occurs is a and ... A: A die is weighted 4 is twice as likely to appear as the number 1,2,3,5 6 is twice as likely to ... | |
| probability question | 4/9/2008 |
| Q: A group of 3 married couples are to be seated randomly around a circular table. What is the ... A: i assume this means that there are 6 people, randomly sitting around the table. we need to a) find ... | |
| Probability | 4/7/2008 |
| Q: A committee of 5 people is to be selected from student council. Council has 6 boys and 7 girls. What ... A: A committee of 5 people is to be selected from student council. Council has 6 boys and 7 girls. What ... | |
| statistics | 4/6/2008 |
| Q: A football team has five senior members,the team votes on a captain and cocaptain that are senior ... A: In how many ways can you select the captain and co-captain? How many ways can you select the ... | |
| rock paper scissors vs flippin a quarter | 4/5/2008 |
| Q: ahead of time . scenario what is the probability percentage chance of winning on rock paper ... A: this is only one game. good. chance of winning in coin-flip ( i assume you say Heads, and see what ... | |
| Probability & Statistics | 3/30/2008 |
| Q: what is the probability that 13 rolls of a fair die will show three fours? A: what is the probability that 13 rolls of a fair die will show three fours? if you roll it once, the ... | |
| probability | 3/22/2008 |
| Q: Box A contains 2 black and 5 white marbles whereas box B contains 1 black and 4 white marbles. A box ... A: Box A contains 2 black and 5 white marbles whereas box B contains 1 black and 4 white marbles. A box ... | |
| Probablity | 3/13/2008 |
| Q: A drawer contains 50 bolts and 150 nuts. Half of the bolts and half of the nuts are rusted. If one ... A: Let's try a new question. A Drawer contains 2 bolts and 3 nuts. If you pick an item, what is the ... | |
| Quantitative Analysis For Managerial Applications | 3/12/2008 |
| Q: A Drawer contains 5o bolts and 150 nuts.Half of the nuts are rusted,If one item is chosen at ... A: Let's try a new question. A Drawer contains 2 bolts and 3 nuts. If you pick an item, what is the ... | |
| birthdays | 2/27/2008 |
| Q: I am looking to find out statistically how many people you would have to speak to in the street ... A: I assume when you say birthday, you mean date and month. ( not year). There are 365 such days ( or ... | |
| Proability Question | 2/24/2008 |
| Q: A certain airplane has two independent alternators to provide electrical power. The probability that ... A: The chance of the first failing is 0.02. The chance of the second failing is 0.02. Both failing ... | |
| math | 2/12/2008 |
| Q: A society decides to raise funds by running a lottery.Every week 3 numbers are drawn from 20 ... A: sounds a bit like homework. so i am going to give you hints; if you need more, write to me at ... | |
| math | 2/11/2008 |
| Q: A society decides to raise funds by running a lottery.Every week 3 numbers are drawn from 20 ... A: Sorry for the delay; I skipped this email. How many combinations are there? The first number can be ... | |
| probability | 1/30/2008 |
| Q: Martha is a flight attendant stationed in Denver. Her assignments are rotated randomly between ... A: Her assignments are rotated randomly between flights to Dallas; Seattle; Portland, Boise, and Las ... | |
| Probability of a word sequence | 1/10/2008 |
| Q: Pls tell me how to find the probability of a particular word appearing when we arrange all 26 ... A: It depends on the length of the word. The first letter has be the exact one, e.g. M, so the chance ... | |
| probability | 12/28/2007 |
| Q: I have tried many times to answer this question and still am not getting it right. Can you please ... A: dont be math phobic.its quite simple the probability is The number of acceptable combinations/ The ... | |
| premutations | 12/18/2007 |
| Q: you want to take a photograph at night. camera allows for 10s in half-second increments, and the ... A: oops, i just realized that the answer went blank! the question is a bit confusing, i am not a ... | |
| probability | 12/14/2007 |
| Q: There are 2 defective light bulbs in a box of 10. If 3 light bulbs are randomly drawn, what is the ... A: I am not going to solve the full problem, since this looks like homework. We need to find the ... | |
Surajit Basu
Top Expert on this page
Expertise
I can answer questions about applications of probability. I cannot answer questions on statistics and distributions.
Experience
I help out chidren. I solve problems/ puzzles regularly.
Education/Credentials
B. Tech., Computer Science, IIT Kanpur, India
MBA, Finance/Systems, IIM Calcutta, India
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