Probability / Statistics

S
need help with calculating combinations and permutations
Replies
2
Views
851
Dr.Peterson
Dr.Peterson
E
When is a critical region necessary for hypothesis testing?
Replies
1
Views
913
BeachBanana
BeachBanana
L
Probability of seeing 11:11
Replies
10
Views
15K
khansaheb
K
F
Help with Counting Problem 2.1: An exam has 15 questions: 8 true/false and 7 multiple choice.
Replies
3
Views
1K
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.
Replies
5
Views
1K
Jammyd
J
A
Square distribution: Three points are randomly selected on a circle of radius R. They form an inscribed triangle with some area.
Replies
6
Views
3K
AlexShev
A
M
Finding a marginal probability density (stuck at the integration)
Replies
3
Views
1K
MathNugget
M
M
Calculating the mean of a sum of independent variables, with the same distribution, when the number of terms varies?
Replies
7
Views
2K
MathNugget
M
R
A fairly simple probability question ( I think)
Replies
2
Views
915
Rampuss
R
M
Percentiles - getting mixed results when trying to find the 10th and 90th percentiles
Replies
4
Views
2K
mathy555
M
J
Correct way to report significant digits in measurements and their uncertainty (calculating stream density)
Replies
2
Views
1K
Dr.Peterson
Dr.Peterson
8
APPROACH TO: What is the probability of a football game ending with a score of 14 - 0 ?
Replies
11
Views
3K
850mph
8
A
Mean and s.d of normal distribution? (The time taken for a randomly chosen student to complete the test is...)
Replies
10
Views
2K
blamocur
blamocur
R
Probability of winning race: Each racer runs 100 yards. Each racer rolls to run between 3 and 10 yards....
Replies
0
Views
641
rp405
R
M
Fuzzy logic for expert medical system (probability of having a patient's covid)
Replies
0
Views
546
MrAlex
M
D
Standard Deviation: If IQ scores that range between 55-70 are three SD's below the mean, then why...
Replies
0
Views
580
deannat506
D
J
coin flip (binomial) question: How many trials are needed to remove chance from being involved in these 4-flip all-heads 1/16 goal trials?
Replies
0
Views
540
JDavid
J
P
How to use correctly the standard deviation for a sample? (object weighted 3 times during production)
Replies
3
Views
1K
Parcosan
P
S
How to best speculate about probabilities, from hypothesis testing?
Replies
1
Views
774
khansaheb
K
S
How to know if a difference between probabilities is large?
Replies
0
Views
561
Seba
S
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