Menu
Forums
New posts
Search forums
What's new
New posts
Latest activity
Blog
Resources
POTW Submission
POTW Suggestion
Math Guides and Tutorials
Latest reviews
Search resources
Log in
Register
What's new
Search
Search
Everywhere
Threads
This forum
Search titles only
By:
Log in
Register
Navigation
More options
Close Menu
Forums
Pre-University Math
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
Welcome to our community
Be a part of something great, join today!
Register
Log in
Basic Probability and Statistics
Basic Probability, Statistics, and Combinatorics
1
2
3
…
Go to page
Go
7
Next
1 of 7
Go to page
Go
Next
Last
Filters
Show only:
Loading…
Sticky
Extremely Important Article on Statistics
Ackbach
Jun 16, 2016
Replies
1
Views
8K
Jun 27, 2016
Joppy
J
Need help with this problem
Nate Learning
Tuesday at 6:32 PM
Replies
1
Views
82
Thursday at 7:59 AM
Country Boy
C
L
Statistics
Lolaa201
Apr 4, 2021
Replies
1
Views
151
Apr 5, 2021
Country Boy
C
I
Give a 'weight' to a ranking
itzvenom95
Mar 20, 2021
Replies
1
Views
204
Mar 21, 2021
itzvenom95
I
H
A bag contains x beads. Calculate the value of x.
Help seeker
Mar 15, 2021
Replies
1
Views
139
Mar 15, 2021
Country Boy
C
A
question help
alexandravo
Mar 15, 2021
Replies
0
Views
57
Mar 15, 2021
alexandravo
A
[ASK] Probability with Factors
Monoxdifly
Mar 8, 2021
Replies
2
Views
140
Mar 8, 2021
Monoxdifly
M
Random Sampling Question
MysticGarC
Feb 25, 2021
Replies
1
Views
161
Feb 26, 2021
Country Boy
C
d. The coefficient of determination is 83.0 %
karush
Feb 15, 2021
Replies
1
Views
196
Feb 16, 2021
karush
[SOLVED]
b. Find the value of the new variance
karush
Feb 10, 2021
Replies
2
Views
131
Feb 14, 2021
Country Boy
C
S
Probability
Srushti
Jan 14, 2021
Replies
1
Views
387
Jan 14, 2021
Country Boy
C
L
Probability
laprec
Nov 20, 2020
Replies
1
Views
758
Nov 21, 2020
Country Boy
C
A
Help calculating a z score
altitus
Oct 29, 2020
Replies
1
Views
379
Oct 29, 2020
GJA
G
A
Word problem for winning percentage
Achi_kun
Oct 24, 2020
Replies
1
Views
323
Oct 25, 2020
Country Boy
C
C
Correlation
cajswn
Oct 18, 2020
Replies
0
Views
194
Oct 18, 2020
cajswn
C
E
Online course for probability and statistics with emphasis on python
Emekadavid
Oct 16, 2020
Replies
0
Views
120
Oct 16, 2020
Emekadavid
E
J
Real Estate math word problem help
jmathdisinclined
Oct 8, 2020
Replies
3
Views
254
Oct 11, 2020
Country Boy
C
M
Monty Hall Problem with 4 doors
MichaelLiu
Oct 7, 2020
Replies
0
Views
129
Oct 7, 2020
MichaelLiu
M
M
How many triangles can be made given these points? Combinations and Permutations
MichaelLiu
Sep 23, 2020
Replies
3
Views
165
Sep 24, 2020
Opalg
What will the minister do?
evinda
Sep 21, 2020
Replies
1
Views
170
Sep 21, 2020
Klaas van Aarsen
Relative variance
evinda
Sep 21, 2020
Replies
1
Views
132
Sep 21, 2020
Klaas van Aarsen
M
Permutation Problem SWITZERLAND
MichaelLiu
Sep 17, 2020
Replies
3
Views
218
Sep 18, 2020
Opalg
K
I need help. x1 + x2 + x3 + x4 = 12 with at least one variable equal or greater than 5
Kayton
Aug 28, 2020
Replies
0
Views
469
Aug 28, 2020
Kayton
K
T
Risk and Odds of daily production
throwawayo_k
Aug 16, 2020
Replies
0
Views
224
Aug 16, 2020
throwawayo_k
T
Y
Squared Error of Estimation
YossiM
Jul 29, 2020
Replies
0
Views
273
Jul 29, 2020
YossiM
Y
D
I need help. Have no idea how to solve any os these.
dediganss
Jul 10, 2020
Replies
4
Views
417
Jul 10, 2020
Country Boy
C
J
Probability: Find the number of ways to form 4-digit numbers >3000
Joe_1234
May 29, 2020
Replies
4
Views
1K
May 31, 2020
Joe_1234
J
Expected value and equality to sums
Dhamnekar Winod
May 22, 2020
Replies
4
Views
390
May 23, 2020
Dhamnekar Winod
H
What is the probability that at least 5 was shown for 5 or more times?
Hasib
May 21, 2020
Replies
4
Views
274
May 22, 2020
MarkFL
M
[SOLVED]
c Expected value for the total number of points awarded on any toss of coins
karush
May 9, 2020
Replies
6
Views
579
May 13, 2020
karush
[SOLVED]
-find probability it will rain both days
karush
May 9, 2020
Replies
3
Views
346
May 13, 2020
HallsofIvy
H
I
Probability distribution: Estimate the size of the fox population
Istar
May 12, 2020
Replies
2
Views
247
May 12, 2020
Istar
I
I
In how many ways can Ben paint his apartment?
Istar
May 11, 2020
Replies
4
Views
275
May 11, 2020
Istar
I
I
Discrete Probability: What is the expected value of cup of coffee to the customer
Istar
May 11, 2020
Replies
5
Views
395
May 11, 2020
MarkFL
M
C
What is the probability that exactly 8 of them are over the age of 65
Crowbarr
Apr 24, 2020
Replies
1
Views
927
May 6, 2020
HallsofIvy
H
C
Find the probability of 1 tire with low air pressure P (1)
Crowbarr
Apr 24, 2020
Replies
0
Views
350
Apr 24, 2020
Crowbarr
C
H
Tom claims that there is over a 60% chance that you can win a 10 or 5 prize. Is his claim correct
heyhey11
Apr 13, 2020
Replies
1
Views
1K
Apr 14, 2020
HallsofIvy
H
M
possible combinations for six digit license plates, numbers 0-9 and letters a-z.
Mackenzie3
Feb 23, 2020
Replies
1
Views
4K
Feb 23, 2020
joypav
J
Find the number of ways of giving 31 cupcakes to 5 students each receives odd number of cupcakes to each one
Monoxdifly
Jan 30, 2020
Replies
3
Views
2K
Feb 1, 2020
Klaas van Aarsen
the number of possible permutations for the assessment
Monoxdifly
Jan 30, 2020
Replies
2
Views
1K
Jan 30, 2020
Monoxdifly
P
Dice throwing probabilities
Peterconfused
Jan 9, 2020
Replies
8
Views
3K
Jan 13, 2020
Peterconfused
P
R
One is blindfolded to choose 11 socks randomly, find the probability of choosing 11 reds in a row
resolution12meh
Jul 6, 2019
Replies
3
Views
6K
Nov 22, 2019
Gaffer
G
G
How many white balls in the container must be at least so that the probability that two black balls were drawn was < 23/30
ghostfirefox
Nov 19, 2019
Replies
2
Views
1K
Nov 19, 2019
ghostfirefox
G
[ASK] Probability of Getting the Main Doorprize
Monoxdifly
Oct 28, 2019
Replies
3
Views
2K
Oct 28, 2019
Monoxdifly
S
Probability calculation of dependent events with limitations
Slyv3r
Oct 15, 2019
Replies
0
Views
1K
Oct 15, 2019
Slyv3r
S
S
Confused About Mutual Exclusivity with More Than Two Events
Spud
Oct 4, 2019
Replies
13
Views
2K
Oct 8, 2019
Ackbach
L
Pricing (VAT)
LizQUIZE
Sep 5, 2019
Replies
1
Views
1K
Oct 2, 2019
HallsofIvy
H
M
Find the probability all 5 dice rolls are the same
marcadams267
Sep 13, 2019
Replies
2
Views
2K
Sep 14, 2019
marcadams267
M
L
Probability of Having a Disease
LostMinosHeins
Sep 10, 2019
Replies
1
Views
747
Sep 10, 2019
HallsofIvy
H
[ASK] A die is tossed 100 times. What's the expected frequency that the number appears will be 4
Monoxdifly
Aug 23, 2019
Replies
2
Views
1K
Aug 25, 2019
Monoxdifly
A
Probability of cancer because of microwaves
arkan
Aug 20, 2019
Replies
1
Views
768
Aug 21, 2019
HallsofIvy
H
M
help explaining unrounding concepts
mathnewb99
Aug 10, 2019
Replies
3
Views
1K
Aug 17, 2019
Klaas van Aarsen
T
how many people will be in the top 10% in at least one examinations
Tomacork
Aug 14, 2019
Replies
2
Views
680
Aug 14, 2019
Tomacork
T
V
Number of ways to color a grid
Viking
Jul 23, 2019
Replies
0
Views
503
Jul 23, 2019
Viking
V
W
Which class has the greatest frequency and which has the least frequency
wilesharob85
Jun 25, 2019
Replies
1
Views
2K
Jun 26, 2019
HallsofIvy
H
Z
Need to find the probability of receiving 8 pairs of identical boxes choosing from 8 items 16 times?
ZooJersey
Jun 23, 2019
Replies
1
Views
818
Jun 23, 2019
HallsofIvy
H
K
Find the probability of AT LEAST three 6s occurring when rolling five six-sided dice all at onc
kevin2000
Apr 30, 2019
Replies
1
Views
2K
Jun 1, 2019
HallsofIvy
H
S
Using ratios to calculate weights in a weighted average (or not)
steveistumped
May 22, 2019
Replies
0
Views
1K
May 22, 2019
steveistumped
S
M
Boxplot question
MJM73
May 19, 2019
Replies
1
Views
873
May 19, 2019
Jameson
J
Find the probability where two throws are the same (a double) when throwing a 6-sided die 5 times
Josefk
May 2, 2019
Replies
1
Views
2K
May 3, 2019
Opalg
P
If he chooses randomly, how many ways can Akio form his starting lineup
Phani
Apr 26, 2019
Replies
1
Views
1K
Apr 26, 2019
MarkFL
M
F
What are the chances that someone in the shop during those two hours was a student who came in for office hours
f666
Apr 24, 2019
Replies
2
Views
727
Apr 26, 2019
f666
F
S
Probability of a random subset of Z
Statistics4win
Apr 23, 2019
Replies
1
Views
1K
Apr 24, 2019
Evgeny.Makarov
E
C
Conditional probability given 2 scenarios: probability of meeting male and a female in the shop
Collins
Apr 19, 2019
Replies
1
Views
2K
Apr 19, 2019
Country Boy
C
L
Levels of Measurement, Basic OLS Regression Questions
lomaxbridges
Apr 17, 2019
Replies
1
Views
1K
Apr 18, 2019
lomaxbridges
L
R
null hypothesis and alternate hypotheses
rainbow
Apr 15, 2019
Replies
1
Views
1K
Apr 15, 2019
Jameson
J
How to exclude combinations for defined sequences?
Josefk
Apr 7, 2019
Replies
1
Views
996
Apr 8, 2019
steep
S
T
Statistics Problem: Which class has the greatest frequency and which has the least frequency
trina6300
Apr 6, 2019
Replies
1
Views
1K
Apr 6, 2019
Klaas van Aarsen
S
Statistics using pie chart: how many more students are there in biology compared to physics
sp3
Mar 23, 2019
Replies
3
Views
2K
Mar 23, 2019
topsquark
T
Calculating the expected value and variance of continuous multi-variable function
TheFallen018
Mar 21, 2019
Replies
1
Views
764
Mar 21, 2019
Country Boy
C
X
What would the probability be for the 11th flip to be the same as 10th flip
xNICK
Mar 18, 2019
Replies
3
Views
943
Mar 19, 2019
xNICK
X
R
Two screws are inspected and the first is found to be good. What is the probability that the second is also good
Ram123
Mar 7, 2019
Replies
2
Views
1K
Mar 11, 2019
Ram123
R
Rule of sum and rule pf product: How many distinct sums are possible using from 1 to all of the 15 cards
Dhamnekar Winod
Mar 4, 2019
Replies
3
Views
3K
Mar 5, 2019
Dhamnekar Winod
How many different arrangements can be formed of the word "equation" if all the vowels are to be kept together?
Asawira Emaan
Feb 19, 2019
Replies
3
Views
1K
Feb 20, 2019
Country Boy
C
J
What’s the increased probability for a masters student given that there are 3 lottery attempts
Jeny George
Feb 2, 2019
Replies
2
Views
1K
Feb 17, 2019
Jeny George
J
J
guessing a three digit pin code from an 8 key keypad
jridgeman99
Feb 15, 2019
Replies
2
Views
2K
Feb 15, 2019
Jameson
J
Calculating a weighted mean?
jridgeman99
Feb 15, 2019
Replies
3
Views
2K
Feb 15, 2019
Greg
J
probability that whenever a single order is selected what is the probability that this probability is from restaurant A or C or
jridgeman99
Feb 15, 2019
Replies
1
Views
2K
Feb 15, 2019
skeeter
J
Finding the probability probability that 4 adults selected at random have health insurance
jridgeman99
Feb 15, 2019
Replies
1
Views
524
Feb 15, 2019
Country Boy
C
S
Find the probability that in a random sample of 4 shots, he will miss the bullseye at least 3 times
SteffiB
Feb 3, 2019
Replies
1
Views
2K
Feb 4, 2019
Country Boy
C
S
Given probability density function find its cumulative distribution function
sofanglom
Dec 20, 2018
Replies
1
Views
3K
Dec 21, 2018
Evgeny.Makarov
E
D
The most basic of questions, sorry. Paper Rock Scissors
dandare30
Dec 19, 2018
Replies
1
Views
963
Dec 19, 2018
Klaas van Aarsen
A
The emission rate changes such that the probability of 0 or 1 emission in 4 seconds becomes 0.8. What is the new rate?
araz
Dec 13, 2018
Replies
3
Views
1K
Dec 18, 2018
Klaas van Aarsen
R
Is there statistically significant evidence against the manufacturer's claim ? Why or why not?
rainbow
Dec 11, 2018
Replies
1
Views
1K
Dec 11, 2018
Country Boy
C
R
What is the probability that students will be arranged in order from shortest to tallest?
rainbow
Dec 6, 2018
Replies
1
Views
1K
Dec 6, 2018
Wilmer
W
R
If all of the delegates shake hands with one another, how many handshakes are exchanged?
rainbow
Dec 6, 2018
Replies
1
Views
663
Dec 6, 2018
Country Boy
C
R
Linear Correlation
reaganlivi
Nov 29, 2018
Replies
1
Views
2K
Nov 29, 2018
Klaas van Aarsen
P
Calculation of probability with arithmetic mean of the sum of random variables
pizzico85
Nov 19, 2018
Replies
1
Views
1K
Nov 19, 2018
Klaas van Aarsen
R
Likelihood of things happening on with regularity depending on initial probability
ReamsOfVerse
Nov 17, 2018
Replies
1
Views
936
Nov 17, 2018
Jameson
J
Compare between the different approaches of forecasting and advise by return the one you suggest
Jason000000
Nov 10, 2018
Replies
5
Views
2K
Nov 13, 2018
Jason000000
J
C
trying to understand how to formulate null and alternative hypotheses
cbwms33
Nov 10, 2018
Replies
1
Views
1K
Nov 10, 2018
Wilmer
W
J
What is the probability that the ball was labeled
Jason000000
Nov 10, 2018
Replies
6
Views
1K
Nov 10, 2018
Wilmer
W
R
What is the probability that she selects none of those containing errors
rainbow
Nov 8, 2018
Replies
2
Views
1K
Nov 9, 2018
Country Boy
C
R
Find the probability that among 7 randomly selected graduates, at least one finds a job in his or her chosen field within a year of graduating
rainbow
Nov 8, 2018
Replies
2
Views
1K
Nov 9, 2018
Country Boy
C
R
find the probability that all 7 witnesses would pick the same person.
rainbow
Nov 8, 2018
Replies
2
Views
976
Nov 9, 2018
Wilmer
W
R
find P(at least 1 woman)
rainbow
Nov 5, 2018
Replies
2
Views
5K
Nov 6, 2018
Country Boy
C
R
Find P(spade or face card or 3 or club)
rainbow
Nov 5, 2018
Replies
4
Views
891
Nov 5, 2018
rainbow
R
R
How many ways can the captain arrage her schedule?
rainbow
Nov 5, 2018
Replies
1
Views
725
Nov 5, 2018
MarkFL
M
C
Calculating total possible matching combinations remaining
charles1234
Oct 23, 2018
Replies
0
Views
1K
Oct 23, 2018
charles1234
C
M
[SOLVED]
Expected value of steps
MATHias
Oct 10, 2018
Replies
3
Views
1K
Oct 11, 2018
MATHias
M
S
Calculating overall percentage/probability from multiple categories?
Spud
Aug 9, 2018
Replies
3
Views
4K
Oct 5, 2018
Country Boy
C
1
2
3
…
Go to page
Go
7
Next
1 of 7
Go to page
Go
Next
Last
You must log in or register to post here.
Forums
Pre-University Math