Probability / Statistics

B
How many different winning lottery tickets?
Replies
13
Views
9K
mmm4444bot
mmm4444bot
S
Sets: Prove (a) (A − AB) ∪ B = A ∪ B; (b) (A ∪ B) − AB = AB^c ∪ A^cB
Replies
4
Views
2K
Dr.Peterson
Dr.Peterson
P
Probability Word Question - Sheep, Ewes, Mature: A farmer has 100 sheep in a field...
Replies
4
Views
3K
Dr.Peterson
Dr.Peterson
P
3 of a kind/ A pair: Say there are 3 Aces 3 Kings and 3 Queens...
Replies
6
Views
2K
HallsofIvy
H
W
2 die roll vs 1 die roll + 7: Player A rolls a 6 sided die twice...
Replies
8
Views
2K
whatthewhat
W
T
Venn diagram - probability distribution: What is differnce in Venn diagram?
Replies
7
Views
1K
pka
pka
T
joint probability distribution vs joint probability
Replies
2
Views
855
tjdj003
T
C
Normal Probability Distribution: order quantities of 15,000, 18,000, 24,000, 28,000
Replies
2
Views
7K
DennisB12
D
B
Multiple Linear Regression Interpretation: diesel cars versus LGV cars
Replies
0
Views
797
Bi7n
B
H
Proof of an obvious change in variance
Replies
6
Views
1K
JeffM
J
T
Odds to Probability Question: bookmaker puts odds of event occuring at 6/4
Replies
6
Views
3K
Dr.Peterson
Dr.Peterson
C
Author says: Chance of Horse B finishing in the top three is about 74%. (How??)
Replies
1
Views
2K
tkhunny
tkhunny
M
Joint distr of (X,Y) is f(x,y)=c(x^2+y^2) for 0<=x,y<=1 (0 otherwise); find c, ...
Replies
1
Views
703
tkhunny
tkhunny
S
  • Locked
Salesman success rate is 0.35. Find probability that >=75% will buy product.
Replies
3
Views
2K
HallsofIvy
H
K
Confused: Find probability 7 of 12 drivers were wearing seat belts.
Replies
1
Views
879
HallsofIvy
H
K
Q asked by lecturer: trainees 80% female, females 90% college-educ., males 78% colleg
Replies
1
Views
864
HallsofIvy
H
R
Help solving Bigram Model with the following probabilities
Replies
1
Views
1K
Dr.Peterson
Dr.Peterson
S
  • Locked
Given P(A) = 0.6, P(B) = 0.5, P(A ∪∪ B) = 0.72. Find P(A | B) and P(B | A).
Replies
1
Views
870
stapel
stapel
S
  • Locked
population covariance and correlation question
Replies
1
Views
766
stapel
stapel
M
CDF from PDF: Let X be random variable w/ density function f(x) = e^{-C|x|}; find C
Replies
7
Views
2K
Dr.Peterson
Dr.Peterson
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