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Probability / Statistics
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Queuing theory: At a computerized Rail Reservation window, the customer arrivals are considered to be Poisson with an average inter-arrival time of...
Win_odd Dhamnekar
Mar 17, 2024
Replies
0
Views
206
Mar 17, 2024
Win_odd Dhamnekar
B
Binomial distribution probability: 800 families with 4 kids each; How many families would be expected to have 1) at least 1 boy 2) at most two girls,
bl363
Mar 15, 2024
Replies
1
Views
119
Mar 15, 2024
BigBeachBanana
S
997 million permutations ?!? (my state has a pick 3 game if numbers in order the top prize is 500.00 for 1 dollar. )
Statsasap
Mar 11, 2024
Replies
6
Views
261
Mar 14, 2024
Steven G
J
Poisson Distribution: One event happens once every 29 seconds on average, and another event happens once every 396 seconds on average.
Juuungle
Mar 13, 2024
Replies
1
Views
139
Mar 14, 2024
BigBeachBanana
W
Finding an equation to a permutation combination question: “Using only three beads, how many different numbers can be made on a three line abacus?”
Washes cat
Mar 9, 2024
Replies
4
Views
230
Mar 13, 2024
Harry_the_cat
F
Hard question: x satisfies the equation 1 / ? =1 /2017^2 +1 / 2018^2 + ⋯ +1 / 4030^2; which of 2016, 2017, 3024, 4037 is closest to x?
Firas
Jul 12, 2018
Replies
4
Views
2K
Mar 11, 2024
Dr.Peterson
A
Completely lost of the usage of Binomial Probability Distribution. (" Car color preferences change over the years...")
as957801
Mar 3, 2024
Replies
4
Views
183
Mar 6, 2024
Dr.Peterson
A
Poisson distribution: Given mean = 3.1, X values 2,3,4,5,6; calculate what percent of data is for each of X-value
aroa
Mar 1, 2024
Replies
1
Views
150
Mar 6, 2024
BigBeachBanana
L
A farmer brings produce to the farmer's market and records whether people buy lettuce, apples, both, or something else. Complete the table below
lu346
Mar 5, 2024
Replies
6
Views
231
Mar 6, 2024
lu346
L
L
Not sure how to do this problem: "Researchers at a media company want to study news-reading habits among different age groups."
lu346
Mar 5, 2024
Replies
3
Views
198
Mar 5, 2024
Dr.Peterson
S
need help with calculating combinations and permutations
silly
Mar 4, 2024
Replies
2
Views
106
Mar 5, 2024
Dr.Peterson
E
When is a critical region necessary for hypothesis testing?
EdwardH115
Feb 29, 2024
Replies
1
Views
152
Mar 1, 2024
BigBeachBanana
K
Confidence interval question: I have a total of 3500 houses. I sampled 350 (10%) and found only 1 had a positive response....
Keith000001
Feb 28, 2024
Replies
1
Views
145
Mar 1, 2024
BigBeachBanana
L
Probability of seeing 11:11
LeeAllison
Aug 10, 2018
Replies
10
Views
9K
Feb 29, 2024
khansaheb
K
F
Help with Counting Problem 2.1: An exam has 15 questions: 8 true/false and 7 multiple choice.
fabaldoni
Feb 27, 2024
Replies
3
Views
151
Feb 27, 2024
fabaldoni
F
J
Hopefully a simple probability question: I have 35 apples, 13 are red and 22 are green. I have to pick 17 with a blindfold on.
Jammyd
Feb 21, 2024
Replies
5
Views
199
Feb 25, 2024
Jammyd
J
A
Square distribution: Three points are randomly selected on a circle of radius R. They form an inscribed triangle with some area.
AlexShev
Feb 20, 2024
Replies
6
Views
212
Feb 23, 2024
AlexShev
A
M
Finding a marginal probability density (stuck at the integration)
MathNugget
Feb 23, 2024
Replies
3
Views
198
Feb 23, 2024
MathNugget
M
M
Calculating the mean of a sum of independent variables, with the same distribution, when the number of terms varies?
MathNugget
Feb 6, 2024
Replies
7
Views
411
Feb 23, 2024
MathNugget
M
R
A fairly simple probability question ( I think)
Rampuss
Feb 18, 2024
Replies
2
Views
163
Feb 22, 2024
Rampuss
R
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