Probability / Statistics

C
Find "a" and "z" for P(z>a) = 0.6789
Replies
1
Views
1K
marcmtlca
M
S
probability that weight is between 2.18 and 2.22 oz
Replies
1
Views
3K
galactus
G
A
Probability random variables
Replies
4
Views
2K
tkhunny
tkhunny
C
Picking uniform colors: how many schemes are possible?
Replies
3
Views
1K
galactus
G
C
How many combinations of puppies can he choose?
Replies
3
Views
1K
chanceandcade
C
C
probability that both marbles drawn will be white
Replies
2
Views
1K
marcmtlca
M
B
Help with 2 diff types of problems
Replies
3
Views
2K
pka
pka
S
Probability Q: find margin of error, stand. dev., mean, etc.
Replies
3
Views
2K
tkhunny
tkhunny
S
Probability Question
Replies
2
Views
3K
srt927
S
L
Need help w/ ' determine if treatment has any effect'
Replies
2
Views
1K
lopram
L
A
Two sample hypothesis of dependent samples using the t dist
Replies
1
Views
5K
galactus
G
S
Opening a new restaurant
Replies
4
Views
2K
tkhunny
tkhunny
W
[SPLIT] z-scores of middle 70%, top 3%, bottom 4%
Replies
2
Views
7K
galactus
G
W
Z-Score
Replies
3
Views
2K
galactus
G
X
need help w/ 'Discuss design of faculty sample...'
Replies
1
Views
4K
tkhunny
tkhunny
J
Help with probability
Replies
1
Views
4K
soroban
S
T
Mean Q: State null and alternative hypotheses for testing if
Replies
0
Views
1K
Toni877
T
B
Help w/ Stats: significant difference; confidence intervals
Replies
2
Views
2K
vikki
V
V
Confidence Intervals
Replies
0
Views
1K
vikki
V
J
Help with probability (the birthday problem)
Replies
3
Views
2K
Jaskaran
J
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