Number of results: 9,572
calc-Probability -- PLEASE HELP!
Htt tHt ttH HHt tHH HtH HHH ttt Each of these probabilities is 1/8 Now multiple each by the probability of getting the die equal or less.. example: HHt*2/6=2/48 HtH=2/48 and so on Add all the cases, and add the probabilities. That is the probability of winning. Expected value...
Thursday, March 6, 2008 at 6:03pm by bobpursley
Intro to probability,
My main problem is deciding with discrete distribution to use: BERNOULLI, BINOMIAL, DISCRETE UNIFORM, GEOMETRIC NEGATIVE BINOMIAL, OR POISSON. Every time I choose one, it's the wrong one. Is there some way I can easily find out which one to use. Because what I do now is I ...
Friday, March 7, 2008 at 11:54am by Amelie
Intro to probability,
When you ask his many questions in a single post, with no evidence of your wown thought process, your chances of getting help here are greatly diminished. I already helped you with #3.66 part b. For part a, the chances of getting zero cultures in a single 1 cm^3 sample are, ...
Friday, March 7, 2008 at 11:54am by drwls
This is a lottery odds question. It involves the Mega Millions, where 5 numbers are selected from the intergers 1-56 (without replacement) then a special 6th ball is selected from a new set of intergers 1-46. The odds of winning are 1/175711536. If exactly 200,000,000 random ...
Tuesday, March 18, 2008 at 4:38am by Rey
Let P be the probability of winning = (1/175...). Let n be the number of tickets = 200M. Let x be the exact number of winners. First, calculate z, the number of ways you could have exactly x winners. It is n-choose-x; the formula is: z=n!/(n-x)!x! (where ! means factorial n! 1...
Tuesday, March 18, 2008 at 4:38am by economyst
I will let a = 1/175,711,536= 5.591145*10^-9 , to save typing. The expected number, among 200,000,000, is L = 2*10^8 a = 1.13823 The probability of P(k) of k winners is given by Poisson statistics: P(k) = L^k*e^-L/k! Probability of 0 winners = 0.32039 Probability of 1 winner...
Tuesday, March 18, 2008 at 4:38am by drwls
probability of an event
How do you predict the probability of an event using trials or simulations? Example please? Thanks. :)
Tuesday, March 18, 2008 at 2:49pm by Jen
probability of an event
Say you wanted to know the probability of getting seven when rolling two dice. You could make a bunch of rolls. Number-with-7/Number-rolls = estimated probability of rolling 7. Get it? Take it from here and expand.
Tuesday, March 18, 2008 at 2:49pm by economyst
a die is rolled and the spinner is spun. Find the probability
Sunday, September 10, 2006 at 3:24pm by octavia
A locker combination has three nonzero digits, and digits cannot be repeated. If the first two digits are even, what is the probability that the third digit is even?
Thursday, March 27, 2008 at 5:05pm by Brooke
how do you do probability in decimals
Thursday, March 27, 2008 at 5:05pm by lily
Mary had 6 pennies and 4 nickels. If she took three coins, what is the probability that all the coins were pennies? I think it's 18/24.
Sunday, March 30, 2008 at 5:21pm by Ktowns
Erin's CD changer holds 6 compact disks. Justin uses the random function on to play all the songs randomly. If each of the disks on the changer holds 10 songs, what is the probability has favorite song will be first? If I am getting the hang of this, it's 1/2160 Please help.
Sunday, March 30, 2008 at 8:28pm by Ktowns
A family has four children. The probability of having a girl is 1/2. What is the probability of having 2 girls followed by 2 boys?
Wednesday, April 16, 2008 at 9:26am by louis
Two Fair Dice are thrown and the differance is noted.Draw the sample space.What is the probability that ther is no differance.
Tuesday, April 15, 2008 at 9:45pm by dan
FIND THE PROBABILITY OF DRAWING AT LEAST ONE CLUB WHEN YOU DRAW CARDS FROM A STANDAD 52-CARD DECK 52 TIMES; ASSUME YOU REPLACE THE CARD EAC TIMEYOU DRAW, SO THERE ARE ALWAYS 52 CARDS O DRAW FROM. LIST THE APPROPRIE FORMULA, TEN COMPUTE YOUR ANSWER.
Thursday, April 17, 2008 at 11:24pm by SNOOPY
find the probability of andomly selectng 7 amerans rom apool of 23 britsh peopleand 19 amerans. determine whether the event isdependent or independent, list the aroprite formula, compu your answer,
Thursday, April 17, 2008 at 11:42pm by SNOOPY
The probability ofdrawing just one club in the 52 draws = 1/4 * (3/4)^51 The probability of drawing two clubs — which fits the "at least" description — in 52 draws = (1/4)^2 * (3/4)^50 The probability of drawing three clubs in 52 draws = (1/4)^3 * (3/4)^49 Or you could go from...
Thursday, April 17, 2008 at 11:24pm by PsyDAG
intro to probability
In a study of particulate pollution in air samples over a smokestack, X1 represents the amount of pollant per sample when a cleaning device is not operating, and X2 represents the amount per sample when the cleaning device is operating. Assume that (X1, X2) has a joint ...
Sunday, April 20, 2008 at 7:56pm by amelie
Assume 20 oz. cola bottles are filled so that the mean amount of liquid contained in the bottle is 20 oz and the standard deviation is .12 oz. If a bottle is randomly selected, find the probability that the number of ounces in that bottle is greater than 20.21 oz.
Saturday, June 21, 2008 at 11:04am by thomas