Probability / Statistics

J
probability struggles: "In a school of 340 students, 40% study Japanese, 75% study French and 20% study both,"
Replies
7
Views
616
khansaheb
K
P
Permutations question: book's soln to "How many diff. arrangements can be made if V is 2nd, Z never last?"
Replies
5
Views
614
pazzy78
P
S
How do I calculate how much the data deviates from one group to another in a table of percentages and standard errors?
Replies
1
Views
399
khansaheb
K
D
Simple multi-part probability event: For a fly ball, assuming they were the only fielder, the left fielder havs a 50% chance of making the catch....
Replies
6
Views
1K
khansaheb
K
A
CFA: chi-square value is 0 but with degrees of freedom
Replies
1
Views
353
axenox
A
A
sample size in parallel multiple mediation analysis with 2 mediators and 3 covariate/control variables
Replies
0
Views
311
AmyStill
A
M
I dont get my mistake ; combinatory analysis
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7
Views
620
khansaheb
K
N
Probability problem of choosing a ball from a box
Replies
11
Views
1K
Dr.Peterson
Dr.Peterson
M
Appropriate statistical test for "Does education level positively impact systolic blood pressure in men? in women?"
Replies
1
Views
372
khansaheb
K
F
  • Locked
Odds of a lottery win with 10,000 choices for numbers, players select 100 numbers per ticket
Replies
14
Views
832
stapel
stapel
R
Possibilites of dropping 4 coins in 4 cups: chance (expectation?) of empty cups
Replies
9
Views
670
RichardDL
R
W
Is my solution correct? (We have a large number of items n>=10000 that we want to divide into one of four boxes.)
Replies
1
Views
364
blamocur
blamocur
F
Is this true? Assume that, for all real numbers k, there exists I such that p)X(x|I) = f(x-k).
Replies
1
Views
340
blamocur
blamocur
D
Calculate how many Number-Plates could exist with 3 pairs of numbers or letters
Replies
3
Views
461
blamocur
blamocur
G
Expected value: A box contains seven yellow, four green, six purple and eight red Smarties jumbled together....
Replies
2
Views
463
BigBeachBanana
BigBeachBanana
G
Probability: There are twelve nurses and eight doctors to choose from to form a committee of five people....
Replies
1
Views
324
blamocur
blamocur
M
A statistical question confusing for beginners! "The Coffee shop's mean sales are $2000 a day, with a standard deviation of $1000..."
Replies
5
Views
684
metinerol
M
R
Properties of Independent Events: "Let A be an event such that P[A] ∈ (0, 1). Show that..."
Replies
2
Views
422
Dr.Peterson
Dr.Peterson
G
Probability calculation: "A street magician accidentally dropped a valuable prop during a late-night performance."
Replies
2
Views
386
limiTS
L
C
I need help concerning venn diagrams shading
Replies
16
Views
1K
Dr.Peterson
Dr.Peterson
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