Probability / Statistics

P
covariance of sets of scores is 0.73; find r between 2 sets
Replies
3
Views
2K
pc678
P
L
5 wht, 3 blk balls in urn; 2 randomly draw. Find prob that
Replies
1
Views
2K
pka
pka
H
in urn: R red balls, B blue balls, R + B = N, N always even
Replies
0
Views
1K
hashi
H
C
2 people chosen from 80 (40 couples): find prob. married
Replies
3
Views
2K
arthur ohlsten
A
M
Confusing and challenging Independence Problem
Replies
1
Views
1K
pka
pka
F
if 200 calls, find prob. that 150 or more have ans. machine
Replies
3
Views
2K
stapel
stapel
F
2 dice rolled, sample space given: which mut. exclusive?
Replies
5
Views
2K
tkhunny
tkhunny
F
chance random choice of 10 from 50 contains no overlap w/
Replies
1
Views
1K
tkhunny
tkhunny
T
Curve 1 has st. dev. 1, Curve 2 has st. dev. of 5: add curve
Replies
2
Views
2K
thegreatescape333
T
S
w white balls, b black balls; 1 chosen randomly, returned w/
Replies
1
Views
4K
spphat
S
P
Z-Scores: beyond what scores do most extreme 5% lie?
Replies
5
Views
8K
pc678
P
D
Random variable: A bag contains six marbles, of which four are red and two are blue.
Replies
3
Views
5K
dcc3038026
D
D
num. of ways to get all-red five-card hand from 52-card deck
Replies
3
Views
4K
dcc3038026
D
C
J has 30% chance of winning gold, 40% for silver, 10% for bo
Replies
3
Views
1K
pka
pka
C
Linear Programming: Graphical Methods for Minimization
Replies
1
Views
6K
galactus
G
D
help with a tough probability
Replies
4
Views
7K
galactus
G
D
Probability question
Replies
1
Views
1K
stapel
stapel
F
Question I don't understand on probablility
Replies
3
Views
1K
tkhunny
tkhunny
S
Conditional Probability
Replies
2
Views
1K
sunny1324
S
D
Probability
Replies
9
Views
2K
arthur ohlsten
A
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