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0 
Questions Answered

LXelle:
Group Title
A box contains five balls numbered 1, 2, 3, 4, 5. Three balls are drawn randomly at the same time from the box.
(i) By listing all possible…
 updated an hour ago
 15 replies
 No Medals Yet
Mathematics

kirbykirby:
Group Title
Statistics:
For a twosample ttest, where the 2 population variances are assumed to be unequal, how can I show that the statistic \[ \la…
 updated an hour ago
 3 replies
 No Medals Yet
Mathematics

Best_Mathematician:
Group Title
1
 updated 4 hours ago
 53 replies
 2 Medals
Mathematics

Kkutie7:
Group Title
Can anyone explain to me the difference between standard deviation and pooled standard deviation. How do I calculate the second one?
 updated 6 hours ago
 1 reply
 No Medals Yet
Mathematics

IM5er101:
Group Title
Will Fan And Medal!!!!!!
Lori draws a clear marble from a bag of marbles 14 times out of a toal of 56 drwas with replacement. If there ar…
 updated 7 hours ago
 1 reply
 No Medals Yet
Mathematics

Loser66:
Group Title
Prove:
If L is a line in \(R^2\)
and if T: \(R^2 \rightarrow R^2\) is a linear transformation,
…
 updated 7 hours ago
 62 replies
 2 Medals
Mathematics

saln134:
Group Title
solve the equation for B:
((5x+34)/(x^2+x12))=(7/(x3))(B/(x+4))
 updated 1 hours ago
 11 replies
 1 Medal
Mathematics

daydreamer:
Group Title
\[3\sqrt{2}+\sqrt{8}\]
 updated 14 hours ago
 6 replies
 2 Medals
Mathematics

sammysunshine66:
Group Title
what is the equation in standard form, of a parabola that models the values in the table.
x204 F(x) 7373
 updated 15 hours ago
 1 reply
 No Medals Yet
Mathematics

Sabrinathebruja:
Group Title
average rate of change for f(x) x=4 to x=7?
 updated 16 hours ago
 31 replies
 1 Medal
Mathematics

brycedm:
Group Title
I need to write an equation that relates sin x and sin (pi +x)
 updated 16 hours ago
 3 replies
 No Medals Yet
Mathematics

Best_Mathematician:
Group Title
1
 updated 5 hours ago
 19 replies
 1 Medal
Mathematics

Loser66:
Group Title
P(A or B) = 0.76
P(A or B') = 0.87
find P(A) ?
…
 updated 14 hours ago
 9 replies
 2 Medals
Mathematics

JoannaBlackwelder:
Group Title
Suppose a fair die is cast seven times to obtain a sequence of seven numbers. How many sequences have the property that each of the 6 possib…
 updated 18 hours ago
 26 replies
 3 Medals
Mathematics

tamara100:
Group Title
name the property of 0•9=0
 updated yesterday
 1 reply
 No Medals Yet
Mathematics

bobbob123123:
Group Title
PLEASE HELPPPPPPPPPPPPPPPPPPP!@#@!#@@!#!#@!#
Research on adolescence indicates that for girls early maturation is particularly difficult, …
 updated yesterday
 6 replies
 1 Medal
Mathematics

calyne:
Group Title
[Discrete math/sets:]
universe = 151x…
 updated yesterday
 7 replies
 2 Medals
Mathematics

madison.bush:
Group Title
The Venn Diagram shows a universe with 26 elements and two different outcomes: B and Y
Find the following probability and write your answ…
 updated yesterday
 2 replies
 3 Medals
Mathematics

sand81:
Group Title
A fair die is cast seven times to obtain a sequence of seven numbers. How many sequences have the property that each of the 6 possible value…
 updated yesterday
 3 replies
 No Medals Yet
Mathematics

Jake_1337:
Group Title
What is <<^^)> + :D?
…
 updated yesterday
 2 replies
 1 Medal
Mathematics

juju1234:
Group Title
A coin is biased such that it results in 2 heads out of every 3 coin flips, on average. Which statement is true?
a)The theoretical probab…
 updated 2 days ago
 7 replies
 1 Medal
Mathematics

Yaazhini:
Group Title
How to express y = ln(2X4) in terms of X?
 updated 2 days ago
 2 replies
 1 Medal
Mathematics

yololifelove:
Group Title
Please help! Beatriz is creating graphs for her city’s Parks Department. Beatriz is trying to persuade the Parks Department to put in more …
 updated 2 days ago
 9 replies
 1 Medal
Mathematics

khubbz:
Group Title
Consider a t distribution with 26 degrees of freedom. Compute P(1.43 < t < 1.43). Round your answer to at least three decimal places.
…
 updated 2 days ago
 17 replies
 1 Medal
Mathematics

maggielucci:
Group Title
If a rock is thrown upward on the planet x with a velocity of 10 m/s, then its height in meters t seconds later is given by s(t)=10t2t^2. F…
 updated yesterday
 5 replies
 No Medals Yet
Mathematics

sofiegirl:
Group Title
A bag contains 5 blue marbles, 2 red marbles, 6 yellow marbles, and 2 green marbles. what is the probability of picking 3 marbles without r…
 updated 2 days ago
 7 replies
 No Medals Yet
Mathematics

Hotchellerae21:
Group Title
@superhelp101 @Destinymasha
…
 updated 3 days ago
 13 replies
 2 Medals
Mathematics

DiotropicInventor:
Group Title
A normal distribution has a mean of 100 and a standard deviation of 12. Find the probability that a value selected at random is in the follo…
 updated 3 days ago
 11 replies
 No Medals Yet
Mathematics

HatcrewS:
Group Title
In Hypothesis Testing, if your pvalue equals to the level of significance, do you reject H ?
 updated 4 days ago
 3 replies
 1 Medal
Mathematics

cayly13:
Group Title
Which sentence has correct subjectverb agreement?
The cello have a deeper sound than the violin.
…
 updated 4 days ago
 3 replies
 No Medals Yet
Mathematics
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